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Mukherjee, Sushovan and Gopalakrishnan, S (2017) Phononic dispersion of graphene using atomistic-continuum model and spectrally formulated finite element method. In: Conference on Nanosensors, Biosensors, Info-Tech Sensors and 3D Systems, MAR 26-29, 2017, Portland, OR.
Sekhar, B Raja and Gopalakrishnan, S and Murthy, M V V S (2017) Time Domain Spectral Element method to Study Response of a Sandwich Beam with Compliant Core Subjected to Under Water Explosion. In: 11th International Symposium on Plasticity and Impact Mechanics (IMPLAST), DEC 11-14, 2016, Indian Inst Technol, New Delhi, INDIA, pp. 1515-1522.
Gopalakrishnan, S (2016) Propagation of Elastic Waves in Nanostructures. In: Conference on Nanosensors, Biosensors, and Info-Tech Sensors and Systems, MAR 21-24, 2016, Las Vegas, NV.
Mukherjee, Sushovan and Gopalakrishnan, S (2016) A frequency domain Ritz method based spectral finite element methodology for the computation of band structure of the pentamode metamaterials. In: Conference on Nanosensors, Biosensors, and Info-Tech Sensors and Systems, MAR 21-24, 2016, Las Vegas, NV.
Mukherjee, Sushovan and Scarpa, Fabrizio and Gopalakrishnan, S (2015) Novel Design of Honeycombs Using a Seamless Combination of Auxetic and Conventional Cores Toward Phononic Band Gap Engineering. In: Conference on Nanosensors, Biosensors, and Info-Tech Sensors and Systems, MAR 09-11, 2015, San Diego, CA.
Kumar, N and Vinoy, KJ and Gopalakrishnan, S (2015) A Reduced Order Model for Electromagnetic Scattering using Multilevel Krylov Subspace Splitting. In: IEEE International Conference on Computational Electromagnetics (ICCEM), FEB 02-05, 2015, City University of Hong Kong, Kowloon Tong, HONG KONG, pp. 341-343.
Munian, Rajendra Kumar and Mahapatra, D Roy and Gopalakrishnan, S (2015) Uncertainty Quantification in Ultrasonic Wave Based Detection of Delamination in Composite Structures. In: 10th International Workshop on Structural Health Monitoring (IWSHM), SEP 01-03, 2015, Stanford Univ, Stanford, CA, pp. 2487-2494.
Geetha, Kolappan G and Mahapatra, Roy D and Gopalakrishnan, S (2013) Guided Ultrasonic Wave Propagation through Inaccessible Damage in a Folded Plate using Sensor-Actuator Network. In: Conference on Health Monitoring of Structural and Biological Systems , 11-14, 2013, San Diego,.
Mukherjee, Sushovan and Gopalakrishnan, S (2013) A Guided Wave approach for the detection of damage in a structure having elements with periodic damage. In: Conference on Health Monitoring of Structural and Biological Systems, 11-14, 2013, San Diego.
Huang, Chaojun and Sun, Peng and Nagarajaiah, Satish and Gopalakrishnan, S (2013) Time-Frequency Methods for Structural Health Monitoring of Deepwater Risers Subjected to Vortex Induced Vibrations. In: Conference on Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, MAR 10-14, 2013 , San Diego, CA .
Geetha, Kolappan G and Mahapatra, Roy D and Gopalakrishnan, S (2012) Guided Wave based Damage Detection in a Composite T-joint using 3D Scanning Laser Doppler Vibrometer. In: Conference on Health Monitoring of Structural and Biological Systems, MAR 12-15, 2012 , San Diego, CA, USA.
Chakraborty, N and Mahapatra, Roy D and Gopalakrishnan, S (2012) Ultrasonic Guided Wave Characterization and Damage Detection in Foam-core Sandwich Panel using PWAS and LDV. In: Conference on Health Monitoring of Structural and Biological System, March 12-15, 2012, San Diego, CA, USA.
Gopalakrishnan, S (2008) Modeling of magnetostrictive materials and structures. In: International Workshop on Smart Devices - Modeling of Material Systems, JAN 10-12, 2008, Chennai.
Dube, AK and Gopalakrishnan, S (2023) Study of guided wave propagation in multi-layer waveguides for the inspection of additively manufactured components. In: Health Monitoring of Structural and Biological Systems XVII 2023, 13-16 March 2023, Long Beach, California, United States.
Mutnuri, VS and Gopalakrishnan, S (2021) Propagation of Elastic Waves in Nonlocal Bars and Beams. In: 7th International Congress on Computational Mechanics and Simulation, 2019, 11-13 December 2019, Mandi, pp. 3-21.
Rautela, M and Monaco, E and Gopalakrishnan, S (2021) Delamination detection in aerospace composite panels using convolutional autoencoders. In: Health Monitoring of Structural and Biological Systems XV 2021, 22-26 Mar 2021.
Shivashankar, P and Gopalakrishnan, S and Kandagal, SB (2021) On the deduction of the nonlinear behavior of piezoelectric actuators from vibrational response of piezoelectric-beams. In: Active and Passive Smart Structures and Integrated Systems XV 2021, 22-26 Mar 2021, virtual.
Rautela, M and Gopalakrishnan, S and Gopalakrishnan, K and Deng, Y (2020) Ultrasonic guided waves based identification of elastic properties using 1D-Convolutional neural networks. In: Proceedings of the Annual Conference of the Prognostics and Health Management Society, PHM, 8-10 June 2020, Detroit; United States.
Shivashankar, P and Kumar, S and Gopalakrishnan, S (2020) Design, development and the analysis of d31-mode and d33-mode multilayered surface bondable piezoelectric actuators, for actuation of large and stiff structures. In: AIAA Scitech 2020 Forum, 6 - 10 January 2020, Orlando.
Paunikar, S and Gopalakrishnan, S (2019) A novel double beam element with continuously distributed elastic springs for modelling de-bonds in adhesively bonded joints. In: 12th International Workshop on Structural Health Monitoring: Enabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT), IWSHM 2019, 10 - 12 September 2019, Stanford, pp. 939-945.
Paunikar, S and Gopalakrishnan, S (2018) Inverse problems using spectral finite element method. In: 9th European Workshop on Structural Health Monitoring, EWSHM 2018, 10 - 13 July 2018, Manchester.
Mukherjee, Sushovan and Gopalakrishnan, S (2017) Band structure computation of polygonal solid-solid phononic crystal with features using frequency domain spectral superelement method. In: Nanosensors, Biosensors, Info-Tech Sensors and 3D Systems 2017, 26 - 29 March 2017, Portland, 101671M.
Samaratunga, D and Jha, R and Gopalakrishnan, S and Messac, A (2015) Wavelet spectral finite element modeling for wave propagation in adhesively bonded composite joints. In: 23rd AIAA/AHS Adaptive Structures Conference, 5-9 January 2015, Kissimmee, Florida.
Geetha, Kolappan G and Rathod, MT and Mahapatra, Roy D and Gopalakrishnan, S (2012) Lamb wave based detection of damage in a stiffener bonded to a plate. In: SPIE Smart Structures/NDE Conference, March 06, 2012, San Diego, California, USA.
Samaratunga, D and Jha, R and Gopalakrishnan, S (2012) Wavelet spectral finite element modeling of transverse crack for structural health monitoring of composite plates. In: 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, 23-26 April 2012.
Kishor, N and Gopalakrishnan, S and Ganguli, R (2009) A Legendre Spectral Element for Modeling Acoustic Fluids. In: IISc Centenary International Conference and Exhibition in Aerospace Engineering, 18-22 May 2009, IISc, Bangalore, India.
Naik, Narayana G and Anandatheertha, Sunil and Rao, Subba P and Gopalakrishnan, S (2009) Strength prediction and failure mechanisms of single walled carbon nanotube reinforced nanocomposite systems. In: ICEAE 2009, IISc Centenary International Conference and Exhibition on Aerospace Engineering, 18-22 May, 2009, IISC.
Kishor, N and Ganguli, R and Gopalakrishnan, S (2009) Uncertainty Quantification of Sloshing Motion in Partially Filled Rectangular Tanks. In: IISc Centenary International Conference and Exhibition in Aerospace Engineering, 18-22 May 2009, IISc, Bangalore, India.
Rathod, VT and Roy, Mahapatra D and Gopalakrishnan, S (2009) A circular Array of Piezoelectric Sensors for Lamb Wave Based Structural Health Monitoring. In: IISc Centenary International Conference and Exhibition on Aerospace Engineering ICEAE , 18-22 May, 2009, Bangalore, India.
Naik, Narayana G and Anandatheertha, Sunil and Rao, Subba P and Gopalakrishnan, S (2009) Nanomechanics based Finite Element and Sub-Structuring Methodology for the bottom-up analysis of CNT reinforced polymer nanocomposite. In: IISc Centenary International Conference and Exhibition on Aerospace Engineering, 18-22 May, 2009, IISC.
Rathod, VT and Roy, Mahapatra D and Gopalakrishnan, S (2009) Lamb wave based identification and parameter estimation of corrosion in metallic plate structure using a circular PWAS array. In: Proc. of SPIE Smart Structures/NDE Conference, 8-12 March, 2009, San Diego, California, USA.
Naik, Narayana G and Anandatheertha, Sunil and Rao, Subba P and Gopalakrishnan, S (2009) Failure Analysis of Single Walled Carbon Nanotubes Reinforced Nanocomposite Structures. In: 25th Annual In-House Symposium on Space Science and Technology, ISRO-IISc Space Technology Cell, 30 January 2009, IISC.
Naik, Narayana G and Anandatheertha, Sunil and Rao, Subba P and Gopalakrishnan, S (2009) Young’s Modulus of Single Walled Zigzag Carbon Nanotubes. In: National Conference on MEMS, Smart Structures and Materials.
Arunkumar, A and Gopalakrishnan, S (2008) Analysis of Wave Propagation in 1D Waveguides with First Order Material Nonlinearity Using the Spectral Finite Element Method. In: 49th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Schaumburg, IL, USA, Schaumburg, IL.
Trikha, M and Mahapatra, DR and Gopalakrishnan, S and Pandiyan, R (2008) Analysis of aeroelastic stability of aslender launch vehicle using aerodynamic data. In: AIAA Aerospace Science Meeting, Reno, Nevada, Reno.
Trikha, M and Gopalakrishnan, S and Mahapatra, DR and Pandiyan, R (2008) Influence of combustion coupled follower force and mass sensitivity on launch vehicle stability. In: AIAA Structures, Structural Dynamics and Materials Conf., Schaumburg, IL.
Apetre, N and Ruzzene, M and Hanagud, S and Gopalakrishnan, S (2008) Nonlinear Spectral Methods for the Analysis of Wave Propagation. In: 49th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Schaumburg, IL, USA, Schaumburg, IL.
Gopalakrishnan, S (2008) Sensing of Fracture Parameters in Self Sensing Peizoelectric Composites. In: Interquadrennial Conference of the International Congress on Fracture, IISc, Bangalore, IISc, Bangalore.
Panchal, M and Mahapatra, DR and Gopalakrishnan, S and Bhat, MR (2008) Ultrasonic signal sensitivity due to crack parameters and computational approach based on wavelet energy correlated damage index. In: AIAA Structures, Structural Dynamics and Materials Conf., Schaumburg, IL, Schaumburg, IL.
Mitra, M and Gopalakrishnan, S (2008) Wave Propagation Analysis in Single- Walled Carbon Nanotube- Polymer Composite with Imperfect Bonding. In: 49th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Schaumburg, IL, USA, Schaumburg, IL.
Ajith, V and Gopalakrishnan, S (2008) An approximate spectral finite element for a delaminated composite beam. In: 5th International Conference on Smart Materials Structures and Systems, IISc, Bangalore.
Panchal, MB and Chenagani, SS and Mahapatra, DR and Gopalakrishnan, S and Bhat, MR (2008) A structural health monitoring system using a Lamb wave sensor network and a wavelet energy correlation technique. In: Proc. ISSS Conference on Smart Materials Structures and Systems, Bangalore, Bangalore.
Gopalakrishnan, S (2007) Application of Spectral Finite elements for Active Control of Smart Composite Structures. In: Sixteenth National, Aerospace Structures Seminar (XVI NASAS , Park College of Engineering, Coimbatore, October 15-16, 2007, Coimbatore.
Mitra, Mira and Gopalakrishnan, S (2007) Axisymmetric Wave Propagation in Single-Walled Carbon Nanotube. In: 48th AIAA /ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference Waikiki, Hawaii, USA, 23-26, April 2007, Hawaii.
Gopalakrishnan, S and Mahapatra, DR and Murthy, CRL and Bhat, MR and Gangadharan, R (2007) Damage Characterization using PWAS and Time-Frequency Signal Analysis. In: International and INCCOM-6 Conference on future trends in Composite materials and Processing, Dec 12-14 2007, IIT, Kanpur.
Gopalakrishnan, S and Ruzzene, M and Hanagud, S and Mitra, Mira (2007) Damage Index Formulation Based on the Filtered Spectral Approximation of the Structural Response. In: 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Waikiki, Hawaii, USA, 23-26, April 2007, Hawaii.
Gopalakrishnan, S and Mitra, Mira and Ruzzene, M and Hanagud, S (2007) Frequency Domain- Based Damage Index for Structural Health Monitoring Using Laser Vibrometry. In: 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Waikiki, Hawaii, USA, 23-26, April 2007, Hawaii.
Gopalakrishnan, S (2007) Recent Research in Structural Health Monitoring. In: Second National Conference on Smart Materials, Structures and MEMS (ISSS-MEMS, 2007), Central Electronic Research Institute (CEERI), Pilani, Rajasthan, India, December 15-16, 2007, Rajasthan.
Gangadharan, R and Gopalakrishnan, S and Murthy, CRL and Bhat, MR (2007) Structural health monitoring of metallic structures using Lamb waves. In: National seminar on Non-Destructive Evaluation NDE-2007, Nov 28-30 2007, Vadodara.
Gopalakrishnan, S (2007) Wave propagation based damage measures for Structural health Monitoring. In: Recent Advances in Structural Engineering (RDSE 2007), Manipal Institute of Technology, Manipal, India, August 30-Sept 2, 2007, Manipal.
Mitra, M and Gopalakrishnan, S (2006) Wavelet based spectral finite element modelling and detection of de-lamination in composite beams. In: 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Material Conference, May 2-4 2006, USA.
Mahapatra, Roy D and Gopalakrishnan, S and Hu, N (2006) Spectral Finite Element Modeling of Complex Structures for Applications in Real-time Structural Health Monitoring. In: 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Material Conference, May 2-4 2006, USA.
Eslavath, Saidha and Naik, Narayana G and Gopalakrishnan, S and Kumar, M (2003) Sensing of delamination in laminated composite beams using multiple magnetostrictive patches. In: SPIE: Smart Materials, Structures, and Systems, 12-14 December, Bangalore, India, Vol.5062, 691-699.
Ghosh, DP and Gopalakrishnan, S (2003) Structural health monitoring in a composite beam using magnetostrictive material through a new FE formulation. In: SPIE: Smart Materials, Structures, and Systems, 12-14 December, Bangalore, India, Vol.5062, 704-711.
Gopalakrishnan, S and Mahapatra, Debiprosad R (2001) Optimal spectral control of multiple waves in smart composite beams with distributed sensor-actuator configuration. In: SPIE:Smart Materials, 13-15 December 2000, Melbourne, Australia, Vol.4234 52-63.
Babu, JR and Gopalakrishnan, S and Fatoba, OO and Leiva-Garcia, R and Akid, R (2024) Modeling fatigue-assisted pitting in pipeline steel with PCA-XFEM. In: Corrosion Science, 228 .
Chopra, I and Ola, SK and Gopalakrishnan, S and Dhayal, V (2023) Tailoring epoxy coating with acetoxime derivative of zinc for advanced anticorrosive performance on mild steel: experimental and computational insights. In: Journal of Molecular Modeling, 29 (9).
Ola, SK and Chopra, I and Gopalakrishnan, S and Dhayal, V (2023) Synergistic anticorrosive properties of titanium tetra-acetoximate modified epoxy hybrid coatings: experimental and computational approaches. In: Multiscale and Multidisciplinary Modeling, Experiments and Design .
Raut, MS and Patel, ML and Verma, H and Gopalakrishnan, S and Jagadeesh, G (2023) Sandwich Structures With Bio-Inspired Viscoelastic Optimized Suture Face Sheets for Blast Mitigation. In: Journal of Sandwich Structures and Materials .
Rautela, M and Mirfarah, M and Silva, CE and Dyke, S and Maghareh, A and Gopalakrishnan, S (2023) Real-time rapid leakage estimation for deep space habitats using exponentially-weighted adaptively-refined search. In: Acta Astronautica, 203 . pp. 385-391.
Rautela, Mahindra and Senthilnath, J and Monaco, Ernesto and Gopalakrishnan, S (2022) Delamination prediction in composite panels using unsupervised-feature learning methods with wavelet-enhanced guided wave representations. In: Composite Structures, 291 (115579). ISSN 02638223
Kulkarni, RB and Gopalakrishnan, S and Trikha, M (2022) Material property identification in composite structures using time domain spectral elements. In: Composite Structures, 292 .
Paunikar, S and Gopalakrishnan, S (2022) Wave propagation in adhesively bonded metallic and composite lap joints modelled through spectrally formulated elastically coupled double beam element. In: International Journal of Mechanics and Materials in Design .
Murthy, MVVS and Gopalakrishnan, S and Poomani, D (2022) A new spectral finite element for the study of face sheet�core disbond identification in a sandwich panel. In: Thin-Walled Structures, 170 .
Paunikar, S and Gopalakrishnan, S (2021) A superconvergent elastically coupled double beam element for analysis of adhesively bonded lap joints. In: International Journal for Computational Methods in Engineering Science and Mechanics, 23 (4). pp. 307-333.
Shivashankar, P and Gopalakrishnan, S and Kandagal, SB (2021) Nonlinear modeling of d33-mode piezoelectric actuators using experimental vibration analysis. In: Journal of Sound and Vibration, 505 .
Rautela, M and Senthilnath, J and Moll, J and Gopalakrishnan, S (2021) Combined two-level damage identification strategy using ultrasonic guided waves and physical knowledge assisted machine learning. In: Ultrasonics, 115 .
Raut, MS and Gopalakrishnan, S (2021) Elastic and viscoelastic flexural wave motion in woodpecker-beak-inspired structures. In: Bioinspiration and Biomimetics, 16 (4).
Ishaquddin, M and Gopalakrishnan, S (2021) Differential quadrature-based solution for non-classical Euler-Bernoulli beam theory. In: European Journal of Mechanics, A/Solids, 86 .
Ishaquddin, M and Gopalakrishnan, S (2021) Static, stability and dynamic analyses of second strain gradient elastic Euler�Bernoulli beams. In: Acta Mechanica, 232 (4). pp. 1425-1444.
Mukherjee, S and Gopalakrishnan, S and Ganguli, R (2021) Time domain spectral element-based wave finite element method for periodic structures. In: Acta Mechanica .
Mutnuri, VS and Gopalakrishnan, S (2020) On causality of wave motion in nonlocal theories of elasticity: a Kramers–Kronig relations study. In: Annals of Solid and Structural Mechanics .
Rautela, M and Gopalakrishnan, S (2020) Ultrasonic guided wave based structural damage detection and localization using model assisted convolutional and recurrent neural networks. In: Expert Systems with Applications . (In Press)
Mukherjee, S and Sekhar, BR and Gopalakrishnan, S and Ganguli, R (2020) Static and dynamic analysis of sandwich panel with spatially varying non-Gaussian properties. In: Journal of Sandwich Structures and Materials, 22 (8). pp. 2469-2504.
Munian, RK and Roy Mahapatra, D and Gopalakrishnan, S (2020) Ultrasonic guided wave scattering due to delamination in curved composite structures. In: Composite Structures, 239 .
Shivashankar, P and Gopalakrishnan, S (2020) Review on the use of piezoelectric materials for active vibration, noise, and flow control. In: Smart Materials and Structures, 29 (5).
Shivashankar, P and Gopalakrishnan, S (2020) Design, modeling and testing of d33-mode surface-bondable multilayer piezoelectric actuator. In: Smart Materials and Structures, 29 (4).
Patra, AK and Gopalakrishnan, S and Ganguli, R (2020) Existence of second spectrums of Timoshenko beam and Mindlin–Herrmann rod theories on the basis of atomistic studies. In: Acta Mechanica, 231 (3). pp. 1159-1171.
Kulkarni, RB and Gopalakrishnan, S and Trikha, M (2020) Impact force identification in structures using time-domain spectral finite elements. In: Acta Mechanica .
Mutnuri, VS and Gopalakrishnan, S (2020) A Re-Examination of Wave Dispersion and on Equivalent Spatial Gradient of the Integral in Bond-Based Peridynamics. In: Journal of Peridynamics and Nonlocal Modeling . ISSN 2522-896X
Ishaquddin, M and Gopalakrishnan, S (2020) Weak form quadrature elements for non-classical Kirchhoff plate theory. In: Annals of Solid and Structural Mechanics .
Ishaquddin, Md and Gopalakrishnan, S (2020) A novel weak form quadrature element for gradient elastic beam theories. In: APPLIED MATHEMATICAL MODELLING, 77 (1). pp. 1-16.
Gopalakrishnan, S and Raut, Manish Suresh (2019) Longitudinal wave propagation in one-dimensional waveguides with sinusoidally varying depth. In: JOURNAL OF SOUND AND VIBRATION, 463 .
Mukherjee, Shuvajit and Gopalakrishnan, S and Ganguli, Ranjan (2019) Stochastic time domain spectral element analysis of beam structures. In: ACTA MECHANICA, 230 (5). pp. 1487-1512.
Chellappan, Vinita and Gopalakrishnan, S and Mani, V (2019) Control of wave propagation response using quasi crystals: A formulation based on spectral finite element. In: MECHANICS OF ADVANCED MATERIALS AND STRUCTURES, 26 (7). pp. 579-600.
Jalan, SK and Nageswara Rao, B and Narayana Murty, SVS and Gopalakrishnan, S (2019) Evaluation of Elastic Properties for a Nanocomposite (Reinforced with SWCNT Agglomerates) Utilizing a Representative Volume Element. In: Transactions of the Indian Institute of Metals, 72 (4). pp. 951-967.
Sudhakar, V and Gopalakrishnan, S and Vijayaraju, K (2019) Development of Family of Super Convergent Shear Deformable Finite Elements for the Analysis of Sandwich Beams with Soft Core. In: International Journal for Computational Methods in Engineering Science and Mechanics, 20 (2). pp. 153-174.
Mukherjee, Shuvajit and Ganguli, Ranjan and Gopalakrishnan, S (2019) Optimization of laminated composite structure considering uncertainty effects. In: MECHANICS OF ADVANCED MATERIALS AND STRUCTURES, 26 (6). pp. 493-502.
Munian, Rajendra Kumar and Mahapatra, D Roy and Gopalakrishnan, S (2018) Lamb wave interaction with composite delamination. In: COMPOSITE STRUCTURES, 206 . pp. 484-498.
Mutnuri, VS and Gopalakrishnan, S (2018) A comparative study of wave dispersion between discrete and continuum linear bond-based peridynamics systems: 1D framework. In: MECHANICS RESEARCH COMMUNICATIONS, 94 . pp. 40-44.
Mukherjee, S and Reddy, MP and Ganguli, R and Gopalakrishnan, S (2018) Ply level uncertainty effects on failure curves and optimal design of laminated composites using directional bat algorithm. In: International Journal for Computational Methods in Engineering Science and Mechanics, 19 (3). pp. 156-170.
Patra, Amit K and Gopalakrishnan, S and Ganguli, Ranjan (2018) Unified nonlocal rational continuum models developed from discrete atomistic equations. In: INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 135 . pp. 176-189.
Sen, D and Nagarajaiah, S and Gopalakrishnan, S (2017) Harnessing sparsity in lamb wave-based damage detection for beams. In: Structural Monitoring and Maintenance, 4 (4). pp. 381-396.
Sekhar, B Raja and Gopalakrishnan, S and Murthy, M V V S (2017) Wave transmission characteristics for higher-order sandwich panel with flexible core using time-domain spectral element method. In: JOURNAL OF SANDWICH STRUCTURES & MATERIALS, 19 (3). pp. 364-393.
Mitra, Mira and Gopalakrishnan, S (2016) Guided wave based structural health monitoring: A review. In: SMART MATERIALS AND STRUCTURES, 25 (5).
Geetha, Kolappan G and Mahapatra, Roy D and Gopalakrishnan, S and Hanagud, S (2016) Laser Doppler imaging of delamination in a composite T-joint with remotely located ultrasonic actuators. In: COMPOSITE STRUCTURES, 147 . pp. 197-210.
Mukherjee, Sushovan and Scarpa, Fabrizio and Gopalakrishnan, S (2016) Phononic band gap design in honeycomb lattice with combinations of auxetic and conventional core. In: SMART MATERIALS AND STRUCTURES, 25 (5).
Rao, Subba P and Anandatheertha, Sunil and Naik, Narayana G and Gopalakrishnan, S (2015) Estimation of mechanical properties of single wall carbon nanotubes using molecular mechanics approach. In: SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 40 (4). pp. 1301-1311.
Jalan, Salil Kanj and Rao, Nageswara B and Murty, Narayana SVS and Gopalakrishnan, S (2015) Generation of Temperature Dependent Transversely Isotropic Properties for Zigzag and Armchair Single-Walled Carbon Nanotubes. In: TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS, 68 (2, SI). S185-S194.
Murthy, MVVS and Renji, K and Gopalakrishnan, S (2015) Multi-transform based spectral element to include first order shear deformation in plates. In: INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 96-97 . pp. 110-120.
Chellappan, Vinita and Gopalakrishnan, S and Mani, V (2015) Spectral solutions to the Korteweg-de-Vries and nonlinear Schrodinger equations. In: CHAOS SOLITONS & FRACTALS, 81 (A). pp. 150-161.
Samaratunga, Dulip and Jha, Ratneshwar and Gopalakrishnan, S (2015) Wave propagation analysis in adhesively bonded composite joints using the wavelet spectral finite element method. In: COMPOSITE STRUCTURES, 122 . pp. 271-283.
Chellappan, Vinita and Gopalakrishnan, S and Mani, V (2015) Wave propagation of phonon and phason displacement modes in quasicrystals: Determination of wave parameters. In: JOURNAL OF APPLIED PHYSICS, 117 (5).
Murthy, MVVS and Renji, K and Gopalakrishnan, S (2015) A spectral element for wave propagation in honeycomb sandwich construction considering core flexibility. In: COMPOSITE STRUCTURES, 127 . pp. 28-40.
Ramabathiran, Amuthan Arunkumar and Gopalakrishnan, S (2014) Automatic finite element formulation and assembly of hyperelastic higher order structural models. In: APPLIED MATHEMATICAL MODELLING, 38 (11-12). pp. 2867-2883.
Gopalakrishnan, S and Ramabathiran, Amuthan Arunkumar (2014) Comparative study of different nonconserving time integrators for wave propagation in hyperelastic waveguides. In: ACTA MECHANICA, 225 (10, SI). pp. 2789-2814.
Dattaguru, B and Gopalakrishnan, S (2014) Foreword to Composites for the 21st Century: Current & Future Trends. In: MECHANICS OF ADVANCED MATERIALS AND STRUCTURES, 21 (3, SI). p. 171.
Chellappan, Vinita and Gopalakrishnan, S and Mani, V (2014) Frequency Domain Based Solution for Certain Class of Wave Equations: An exhaustive study of Numerical Solutions. In: CMES-COMPUTER MODELING IN ENGINEERING & SCIENCES, 97 (2). pp. 131-174.
Nanda, Namita and Kapuria, S and Gopalakrishnan, S (2014) Spectral finite element based on an efficient layerwise theory for wave propagation analysis of composite and sandwich beams. In: JOURNAL OF SOUND AND VIBRATION, 333 (14). pp. 3120-3137.
Jalan, SK and Rao, Nageswara B and Gopalakrishnan, S (2014) VIBRATIONAL CHARACTERISTICS OF ZIGZAG, ARMCHAIR AND CHIRAL CANTILEVER SINGLE-WALLED CARBON NANOTUBES. In: ADVANCED COMPOSITES LETTERS, 22 (6). pp. 131-142.
Samaratunga, Dulip and Jha, Ratneshwar and Gopalakrishnan, S (2014) Wave propagation analysis in laminated composite plates with transverse cracks using the wavelet spectral finite element method. In: FINITE ELEMENTS IN ANALYSIS AND DESIGN, 89 . pp. 19-32.
Vagbharathi, AS and Gopalakrishnan, S (2014) An extended finite element model coupled with level set method for stable pitting corrosion. In: PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 891-89 . pp. 254-260.
Vagbharathi, AS and Gopalakrishnan, S (2014) An extended finite-element model coupled with level set method for analysis of growth of corrosion pits in metallic structures. In: PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 470 (2168).
Patra, Amit K and Gopalakrishnan, S and Ganguli, Ranjan (2014) A spectral multiscale method for wave propagation analysis: Atomistic-continuum coupled simulation. In: COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 278 . pp. 744-764.
Ajith, V and Gopalakrishnan, S (2013) Wave propagation in stiffened structures using spectrally formulated finite element. In: European Journal of Mechanics - A/Solids, 41 . pp. 1-15.
Kumar, Prasanna TJ and Narendar, S and Gopalakrishnan, S (2013) Thermal vibration analysis of monolayer graphene embedded in elastic medium based on nonlocal continuum mechanics. In: Composite Structures, 100 . pp. 332-342.
Gopalakrishnan, S (2013) Lamb Wave Propagation in Laminated Composite Structures. In: JOURNAL OF THE INDIAN INSTITUTE OF SCIENCE, 93 (4). pp. 699-713.
Ajith, V and Gopalakrishnan, S (2013) Wave propagation in a porous composite beam: Porosity determination, location and quantification. In: INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 50 (3-4). pp. 556-569.
Ramabathiran, Amuthan Arunkumar and Gopalakrishnan, S (2012) Automatic energy-momentum conserving time integrators for hyperelastic waves. In: JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, 236 (18, SI). pp. 4700-4711.
Narendar, S and Gupta, SS and Gopalakrishnan, S (2012) Wave propagation in single-walled carbon nanotube under longitudinal magnetic field using nonlocal Euler-Bernoulli beam theory. In: APPLIED MATHEMATICAL MODELLING, 36 (9). pp. 4529-4538.
Chakraborty, N and Rathod, VT and Mahapatra, Roy D and Gopalakrishnan, S (2012) Guided wave based detection of damage in honeycomb core sandwich structures. In: NDT & E INTERNATIONAL, 49 . pp. 27-33.
Satish, N and Narendar, S and Gopalakrishnan, S (2012) Thermal vibration analysis of orthotropic nanoplates based on nonlocal continuum mechanics. In: PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 44 (9). pp. 1950-1962.
Narendar, S and Ravinder, S and Gopalakrishnan, S (2012) Study of non-local wave properties of nanotubes with surface effects. In: Computational Materials Science, 56 . pp. 179-184.
Narendar, S and Gopalakrishnan, S (2012) Temperature effects on wave propagation in nanoplates. In: COMPOSITES PART B-ENGINEERING, 43 (3). pp. 1275-1281.
Ramabathiran, Amuthan Arunkumar and Gopalakrishnan, S (2012) Time and Frequency Domain Finite Element Models for Axial Wave Analysis in Hyperelastic Rods. In: Mechanics of Advanced Materials and Structures, 19 (1-3). pp. 79-99.
Narendar, S and Gopalakrishnan, S (2012) Scale effects on buckling analysis of orthotropic nanoplates based on nonlocal two-variable refined plate theory. In: Acta Mechanica, 223 (2). pp. 395-413.
Deepak, BP and Ganguli, Ranjan and Gopalakrishnan, S (2012) Dynamics of rotating composite beams: A comparative study between CNT reinforced polymer composite beams and laminated composite beams using spectral finite elements. In: International Journal of Mechanical Sciences, 64 (1). pp. 110-126.
Narendar, S and Gopalakrishnan, S (2012) Nonlocal continuum mechanics based ultrasonic flexural wave dispersion characteristics of a monolayer graphene embedded in polymer matrix. In: COMPOSITES PART B-ENGINEERING, 43 (8). pp. 3096-3103.
Narendar, S and Gopalakrishnan, S (2012) Nonlocal continuum mechanics formulation for axial, flexural, shear and contraction coupled wave propagation in single walled carbon nanotubes. In: LATIN AMERICAN JOURNAL OF SOLIDS AND STRUCTURES, 9 (4). pp. 497-513.
Narendar, S and Gopalakrishnan, S (2012) Study of terahertz wave propagation properties in nanoplates with surface and small-scale effects. In: INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 64 (1). pp. 221-231.
Narendar, S and Gupta, SS and Gopalakrishnan, S (2011) Longitudinal Magnetic Field Effect on Nonlocal Ultrasonic Vibration Analysis of Single-Walled Carbon Nanotubes Based on Wave Propagation Approach. In: Advanced Science Letters, 4 (11-12). pp. 3382-3389.
Narendar, S and Gopalakrishnan, S (2011) Spectral Finite Element Formulation for Nanorods via Nonlocal Continuum Mechanics. In: Journal of Applied Mechanics, 78 (6).
Narendar, S and Gopalakrishnan, S (2011) Ultrasonic Wave Dispersion Characteristics of Fluid-Filled Single-Walled Carbon Nanotubes Based on Nonclassical Shell Model. In: Advanced Science Letters, 4 (11-12). pp. 3480-3485.
Narendar, S and Gopalakrishnan, S (2011) Axial wave propagation in coupled nanorod system with nonlocal small scale effects. In: Composites Part B: Engineering, 42 (7). pp. 2013-2023.
Narendar, S and Gopalakrishnan, S (2011) A Revisit to Capture the Entire Behavior of Ultrasonic Wave Dispersion Characteristics of Single Walled Carbon Nanotubes Based on Nonlocal Elasticity Theory and Flugge Shell Model. In: Journal of Computational and Theoretical Nanoscience, 8 (10). pp. 1933-1944.
Ajith, V and Gopalakrishnan, S (2011) Spectral Element Approach to Wave Propagation in Uncertain Composite Beam Structures. In: Journal of Vibration and Acoustics, 133 (5).
Kishor, Krishna D and Ganguli, Ranjan and Gopalakrishnan, S (2011) Uncertainty analysis of vibrational frequencies of an incompressible liquid in a rectangular tank with and without a baffle using polynomial chaos expansion. In: Acta Mechanica, 220 (1-4). pp. 257-273.
Narendar, S and Mahapatra, Roy D and Gopalakrishnan, S (2011) Ultrasonic wave characteristics of a monolayer graphene on silicon substrate. In: Composite Structures, 93 (8). pp. 1997-2009.
Narendara, S and Mahapatra, Roy D and Gopalakrishnan, S (2011) Prediction of nonlocal scaling parameter for armchair and zigzag single-walled carbon nanotubes based on molecular structural mechanics, nonlocal elasticity and wave propagation. In: International Journal of Engineering Science, 49 (6). pp. 509-522.
Narendar, S and Gopalakrishnan, S (2011) Critical buckling temperature of single-walled carbon nanotubes embedded in a one-parameter elastic medium based on nonlocal continuum mechanics. In: Physica E: Low-dimensional Systems and Nanostructures, 43 (6). pp. 1185-1191.
Naik, Narayana G and Omkar, SN and Mudigere, Dheevatsa and Gopalakrishnan, S (2011) Nature inspired optimization techniques for the design optimization of laminated composite structures using failure criteria. In: Expert Systems with Applications, 38 (3). pp. 2489-2499.
Omkar, SN and Senthilnath, J and Khandelwal, Rahul and Naik, Narayana G and Gopalakrishnan, S (2011) Artificial Bee Colony (ABC) for multi-objective design optimization of composite structures. In: Applied Soft Computing, 11 (1). pp. 489-499.
Sudhakar, V and Vijayaraju, K and Gopalakrishnan, S (2010) Development of a New Finite Element for the Analysis of Sandwich Beams with Soft Core. In: Journal of Sandwich Structures and Materials, 12 (6). pp. 649-683.
Anandatheertha, Sunil and Naik, Narayana G and Gopalakrishnan, S and Rao, Subba P (2010) High accuracy curve fits for chirality, length and diameter dependent initial modulus of single walled carbon nanotubes. In: Physica E: Low-dimensional Systems and Nanostructures, 43 (1). pp. 252-255.
Giridhara, G and Rathod, VT and Naik, S and Mahapatra, Roy D and Gopalakrishnan, S (2010) Rapid localization of damage using a circular sensor array and Lamb wave based triangulation. In: Mechanical Systems and Signal Processing, 24 (8). pp. 2929-2946.
Narendar, S and Gopalakrishnan, S (2010) Strong nonlocalization induced by small scale parameter on terahertz flexural wave dispersion characteristics of a monolayer graphene. In: Physica E: Low-dimensional Systems and Nanostructures, 43 (1). pp. 423-430.
Gangadharan, R and Bhat, MR and Murthy, CRL and Gopalakrishnan, S (2010) A geodesic-based triangulation technique for damage location in metallic and composite plates. In: Smart Materials and Structures, 19 (11).
Narendar, S and Mahapatra, Roy D and Gopalakrishnan, S (2010) Investigation of the effect of nonlocal scale on ultrasonic wave dispersion characteristics of a monolayer graphene. In: Computational Materials Science, 49 (4). pp. 734-742.
Trikha, M and Mahapatra, Roy D and Gopalakrishnan, S and Pandiyan, R (2010) Structural stability of slender aerospace vehicles: Part I Mathematical modeling. In: International Journal of Mechanical Sciences, 52 (7). pp. 937-951.
Narendar, S and Gopalakrishnan, S (2010) Ultrasonic wave characteristics of nanorods via nonlocal strain gradient models. In: Journal of Applied Physics, 107 (8). 084312-1-084312-8.
Kishor, D Krishna and Gopalakrishnan, S and Ganguli, Ranjan (2010) A Legendre spectral element model for sloshing and acoustic analysis in nearly incompressible fluids. In: Journal of Computational Physics, 229 (7). pp. 2605-2624.
Ajith, V and Gopalakrishnan, S (2010) Spectral element approach to wave propagation in uncertain beam structures. In: Journal of Mechanics of Materials and Structures, 5 (4). pp. 637-659.
Ali, Rizwaan and Mahapatra, DR and Gopalakrishnan, S (2010) Time Domain Characteristics of Electrical Measures for a Piezoelectric Thin Film to Identify Defects in the Substrate. In: Structural Health Monitoring, 9 (2). pp. 173-192.
Narendar, S and Gopalakrishnan, S (2010) Non local scale effects on ultrasonic wave characteristics nanorods. In: Physica E: Low-dimensional Systems and Nanostructures, 42 (5). pp. 1601-1604.
Narendar, S and Gopalakrishnan, S (2010) Terahertz wave characteristics of a single-walled carbon nanotube containing a fluid flow using the nonlocal Timoshenko beam model. In: Physica E: Low-dimensional Systems and Nanostructures, 42 (5). pp. 1706-1712.
Narendar, S and Gopalakrishnan, S (2009) Nonlocal scale effects on wave propagation in multi-walled carbon nanotubes. In: Computational Materials Science, 47 (2). pp. 526-538.
Gangadharan, R and Murthy, CRL and Gopalakrishnan, S and Bhat, MR (2009) Time reversal technique for health monitoring of metallic structure using Lamb waves. In: Ultrasonics, 49 (8). pp. 696-705.
Gangadharan, R and Prasanna, G and Bhat, MR and Murthy, CRL and Gopalakrishnan, S (2009) Acoustic emission source location and damage detection in a metallic structure using a graph-theory-based geodesic pproach. In: Smart materials structures, 18 (11).
Gangadharan, R and Prasanna, G and Bhat, MR and Murthy, CRL and Gopalakrishnan, S (2009) Acoustic emission source location in composite structure by Voronoi construction using geodesic curve evolution. In: Journal Of The Acoustical Society Of America, 126 (5). pp. 2324-2330.
Omkar, SN and Khandelwal, Rahul and Ananth, TVS and Naik, Narayana G and Gopalakrishnan, S (2009) Quantum behaved Particle Swarm Optimization (QPSO) for multi-objective design optimization of composite structures. In: Expert Systems with Applications, 36 (8). pp. 11312-11322.
Trikha, M and Gopalakrishnan, S and Mahapatra, D Roy and Pandiyan, R (2009) Dynamic Instabilities in Slender Space Launch Vehicles under Propulsive Thrust and Aerodynamic Forces. In: Computer Modeling in Engineering and Sciences, 45 (2). pp. 97-139.
Mitra, Mira and Gopalakrishnan, S (2009) Wave propagation in multi-walled carbon nanotube. In: Computational Materials Science, 45 (2). pp. 411-418.
Gangadharan, R and Mahapatra, D Roy and Gopalakrishnan, S and Murthy, CRL and Bhat, MR (2009) On the sensitivity of elastic waves due to structural damages:Time-frequency based indexing method. In: Journal of Sound and Vibration, 320 (4-5). pp. 915-941.
Omkar, SN and Khandelwal, Rahul and Yathindra, Santhosh and Naik, Narayana G and Gopalakrishnan, S (2008) Artificial immune system for multi-objective design optimization of composite structures. In: Engineering Applications of Artificial Intelligence, 21 (8). pp. 1416-1429.
Apetre, Nicole and Ruzzene, Massimo and Hanagud, Sathyanaraya and Gopalakrishnan, S (2008) A wave-based damage index for the analysis of the filtered response of damaged beams. In: Journal of Mechanics of Materials and Structures, 3 (9). pp. 1605-1623.
Naik, Narayana G and Gopalakrishnan, S and Ganguli, Ranjan (2008) Design optimization of composites using genetic algorithms and failure mechanism based failure criterion. In: Composite Structures, 83 (4). pp. 354-367.
Apetre, N and Ruzzene, M and Hanagud, S and Gopalakrishnan, S (2008) Spectral and Perturbation Analysis of First-Order Beams With Notch Damage. In: Journal of Applied Mechanics, 75 (3). 031019-1-031019-10.
Ali, Rizwaan and Mahapatra, Roy D and Gopalakrishnan, S (2008) Electrostatic measures for a piezoelectric thin film with an embedded crack in the substrate: I. Mode I. In: Smart Materials Structures, 17 (2). 025037-1-025037-9.
Mitra, Mira and Gopalakrishnan, S (2008) Wave Characteristics of Multi-Walled Carbon Nanotubes. In: CMES: Computer Modeling in Engineering & Sciences, 27 (1-2). pp. 125-136.
Omkar, SN and Mudigere, Dheevatsa and Naik, Narayana G and Gopalakrishnan, S (2008) Vector evaluated particle swarm optimization (VEPSO) for multi-objective design optimization of composite structures. In: Computers & Structures, 86 (1-2). pp. 1-14.
Mitra, Mira and Gopalakrishnan, S and Ruzzene, Massimo and Apetre, Nicole and Hanagud, S (2008) Perturbation technique for wave propagation analysis in a notched beam using wavelet spectral element modeling. In: Journal of Mechanics of Materials and Structures, 3 (4). pp. 659-673.
Mitra, Mira and Gopalakrishnan, S (2007) Wave propagation in imperfectly bonded single walled carbon nanotube-polymer composites. In: Journal of Applied Physics, 102 . 084301.
Mitra, Mira and Gopalakrishnan, S (2007) Wave propagation in imperfectly bonded single walled carbon nanotube-polymer composites. In: Journal Of Applied Physics, 102 (8). 084301-1-084301-8.
Vinod, KG and Gopalakrishnan, S and Ganguli, Ranjan (2007) Free vibration and wave propagation analysis of uniform and tapered rotating beams using spectrally formulated finite elements. In: International Journal of Solids and Structures, 44 (18-19). pp. 5875-5893.
Ghosh, DP and Gopalakrishnan, S (2007) A superconvergent finite element for composite beams with embedded magnetostrictive patches. In: Composite Structures, 79 (3). pp. 315-330.
Hu, N and Wang, HH and Yan, B and Fukunaga, H and Mahapatra, Roy D and Gopalakrishnan, S (2007) The partition of unity finite element method for elastic wave propagation in Reissner-Mindlin plates. In: International Journal for Numerical Methods in Engineering, 70 (12). pp. 1451-1479.
Roy Mahapatra, D and Ghosh, DP and Gopalakrishnan, S (2007) Multiscale finite element modelling of pattern formation in magnetostrictive composite thin film. In: International Journal for Multiscale Computational Engineering, 4 (3). pp. 337-349.
Mitra, Mira and Gopalakrishnan, S (2007) Vibrational characteristics of single-walled carbon- nanotube:Time and frequency domain analysis. In: Journal of Applied Physics, 101 (11). p. 114320.
Hu, N and Fukunaga, H and Kameyama, M and Mahapatra, Roy D and Gopalakrishnan, S (2007) Analysis of Wave Propagation in Beams With Transverse and Lateral Cracks Using a Weakly Formulated Spectral Method. In: Journal of Applied Mechanics, 74 (1). pp. 119-127.
Sahoo, Niranjan and Mahapatra, DR and Jagadeesh, G and Gopalakrishnan, S and Reddy, KPJ (2007) Design and analysis of a flat accelerometer-based force balance system for shock tunnel testing. In: Measurement, 40 (1). pp. 93-106.
Vignesh, PS and Mitra, Mira and Gopalakrishnan, S (2007) Nano-composite insert in 1D waveguides for control of elastic power flow. In: Nanotechnology, 18 (3). 035706:1-10.
Murthy, MVVS and Gopalakrishnan, S and Nair, PS (2007) A New Locking Free Higher Order Finite Element Formulation for Composite Beams. In: Computers, Materials & Continua, 5 (1). pp. 43-62.
Mitra, Mira and Gopalakrishnan, S (2007) Wavelet spectral element for wave propagation studies in pressure loaded axisymmetric cylinders. In: Journal of Machanics of Materials and Structures, 2 (4). pp. 753-772.
Vinod, KG and Gopalakrishnan, S and Ganguli, R (2006) Wave Propogation Characteristics of Rotating Uniform Euler-Bernoulli Beams. In: Computer Modeling in Engineering & Sciences, 16 (3). pp. 197-208.
Mitra, Mira and Gopalakrishnan, S (2006) Extraction of wave characteristics from wavelet-based spectral finite element formulation. In: Mechanical Systems and Signal Processing, 20 (8). pp. 2046-2079.
Chakraborty, A and Gopalakrishnan, S (2006) A Spectral Finite Element Model for Wave Propagation Analysis in Laminated Composite Plate. In: Journal of Vibration and Acoustics, 128 (4). pp. 477-488.
Mitra, Mira and Gopalakrishnan, S (2006) Wavelet based spectral finite element for analysis of coupled wave propagation in higher order composite beams. In: Composite Structures, 73 (3). pp. 263-277.
Mitra, Mira and Gopalakrishnan, S (2006) Wave propagation analysis in carbon nanotube embedded composite using wavelet based spectral finite elements. In: Smart Materials and Structures, 15 (1). pp. 104-122.
Agarwal, S and Chakraborty, A and Gopalakrishnan, S (2006) Large deformation analysis for anisotropic and inhomogeneous beams using exact linear static solutions. In: Composite Structures, 72 (1). pp. 91-104.
Chakraborty, A and Sivakumar, MS and Gopalakrishnan, S (2006) Spectral element based model for wave propagation analysis in multi-wall carbon nanotubes. In: International Journal of Solids and Structures, 43 (2). pp. 279-294.
Mitra, Mira and Gopalakrishnan, S (2006) Wavelet Based 2-D Spectral Finite Element Formulation for Wave Propagation Analysis in Isotropic Plates. In: Computer Modeling in Engineering & Sciences, 15 (1). pp. 49-68.
Mahapatra, Roy D and Singhal, A and Gopalakrishnan, S (2006) A higher-order finite waveguide model for spectral analysis of composite structures. In: Computer Methods in Applied Mechanics and Engineering, 195 (9&12). pp. 1116-1135.
Ali, Rizwan and Mahapatraa, DR and Gopalakrishnan, S (2006) A quasi-three-dimensional approach to modeling and analysis of a constrained piezoelectric thin film. In: Acta Materialia, 54 (20). pp. 5529-5540.
Ghosh, DP and Gopalakrishnan, S (2005) Coupled analysis of composite laminate with embedded magnetostrictive patches. In: Smart Materials & Structures, 14 (6). pp. 1462-1473.
Mahapatra, Roy D and Singhal, A and Gopalakrishnan, S (2005) Lamb wave characteristics of thickness-graded piezoelectric IDT. In: Ultrasonics, 43 (9). pp. 736-746.
Prasad, Raghu BK and Bharatkumar, BH and Murthy, Ramachandra DS and Narayanan, R and Gopalakrishnan, S (2005) Fracture Mechanics Model for Analysis of Plain and Reinforced High-Performance Concrete Beams. In: Journal of Engineering Mechanics, 131 (8). pp. 831-838.
Mitra, Mira and Gopalakrishnan, S (2005) Spectrally formulated wavelet finite element for wave propagation and impact force identification in connected 1-D waveguides. In: International Journal of Solids and Structures, 42 (16-17). pp. 4695-4721.
Naik, Narayana G and Murty, Krishna AV and Gopalakrishnan, S (2005) A failure mechanism based failure theory for laminated composites including the effect of shear stress. In: Composite Structures, 69 (2). pp. 219-227.
Chakraborty, A and Gopalakrishnan, S (2005) A spectral finite element for axial-flexural-shear coupled wave propagation analysis in lengthwise graded beam. In: Computational Mechanics, 36 (1). pp. 1-12.
Ali, R and Mahapatra, Roy D and Gopalakrishnan, S (2005) Constrained piezoelectric thin film for sensing of subsurface cracks. In: Smart Materials and Structures, 14 . pp. 376-386.
Murthy, MVVS and Mahapatra, Roy D and Badarinarayana, K and Gopalakrishnan, S (2005) A refined higher order finite element for asymmetric composite beams. In: Composite Structures, 67 (1). pp. 27-35.
Ali, R and Mahapatra, Roy D and Gopalakrishnan, S (2005) Analysis of Constrained Piezoelectric Layer: A Two-Dimensional Coupled Electromechanical Model. In: Ferroelectrics, 329 . pp. 1035-1041.
Mahapatra, Roy D and Suresh, S and Omkar, SN and Gopalakrishnan, S (2005) Estimation of degraded laminate composite properties using acoustic wave propagation model and a reduction-prediction network. In: Engineering Computations, 22 (7). pp. 849-876.
Murty, Krishna AV and Naik, Narayana G and Gopalakrishnan, S (2005) Towards a Rational Failure Criterion for Unidirectional Composite Laminae. In: Mechanics of Advanced Materials and Structures, 12 (2). pp. 147-157.
Chakraborty, A and Gopalakrishnan, S and Kausel, E (2005) Wave propagation analysis in inhomogeneous piezo-composite layer by the thin-layer method. In: International Journal for Numerical Methods in Engineering, 64 (5). pp. 567-598.
Chakraborty, A and Gopalakrishnan, S (2005) A spectrally formulated plate element for wave propagation analysis in anisotropic material. In: Computer Methods in Applied Mechanics and Engineering, 194 (42-44). pp. 4425-4446.
Garg, AK and Mahapatra, Roy D and Suresh, S and Gopalakrishnan, S and Omkar, SN (2004) Estimation of composite damage model parameters using spectral finite element and neural network. In: Composites Science and Technology, 64 (16). pp. 2477-2493.
Ali, R and Mahapatra, Roy D and Gopalakrishnan, S (2004) An analytical model of constrained piezoelectric thin film sensors. In: Sensors and Actuators A: Physical, 116 (3). pp. 424-437.
Kumar, Sreekanth D and Roy, Mahapatra D and Gopalakrishnan, S (2004) A spectral finite element for wave propagation and structural diagnostic analysis of composite beam with transverse crack. In: Finite Elements in Analysis and Design, 40 (13-14). pp. 1729-1751.
Mitra, Mira and Gopalakrishnan, S and Bhat, Seetharama M (2004) Vibration control in a composite box beam with piezoelectric actuators. In: Smart Materials and Structures, 13 . pp. 676-690.
Chakraborty, A and Gopalakrishnan, S (2004) Wave propagation in inhomogeneous layered media: solution of forward and inverse problems. In: Acta Mechanica, 169 (1-4). pp. 153-185.
Mahapatra, Roy D and Gopalakrishnan, S (2004) Spectral finite element analysis of coupled wave propagation in composite beams with multiple delaminations and strip inclusions. In: International Journal of Solids and Structures, 41 (5-6). pp. 1173-1208.
Mitra, Mira and Gopalakrishnan, S and Bhat, Seetharama M (2004) A new super convergent thin walled composite beam element for analysis of box beam structures. In: International Journal of Solids and Structures, 41 (5-6). pp. 1491-1518.
Roy Mahapatra, D and Gopalakrishnan, S (2003) A spectral finite element for analysis of wave propagation in uniform composite tubes. In: Journal of Sound and Vibration, 268 (3). pp. 429-463.
Nag, A and Mahapatra, Roy D and Gopalakrishnan, S and Sankar, TS (2003) A spectral finite element with embedded delamination for modeling of wave scattering in composite beams. In: Composites Science and Technology, 63 (15). pp. 2187-2200.
Chakraborty, A and Gopalakrishnan, S (2003) Poisson's contraction effects in a deep laminated composite beam. In: Mechanics of Advanced Materials and Structures, 10 (3). pp. 205-225.
Sastry, CVS and Mahapatra, Roy D and Gopalakrishnan, S and Ramamurthy, TS (2003) Effect of the actuation phase on the SIF in delaminated composites with embedded piezoelectric layers. In: Smart Materials and Structures, 12 (4). pp. 602-611.
Chakraborty, A and Gopalakrishnan, S (2003) Various numerical techniques for analysis of longitudinal wave propagation in inhomogeneous one-dimensional waveguides. In: Acta Mechanica, 162 (1-4). 01-27.
Chakraborty, A and Gopalakrishnan, S (2003) A spectrally formulated finite element for wave propagation analysis in functionally graded beams. In: International Journal of Solids and Structures, 40 (10). pp. 2421-2448.
Sastry, CVS and Mahapatra, Roy D and Gopalakrishnan, S and Ramamurthy, TS (2003) An iterative system equivalent reduction expansion process for extraction of high frequency response from reduced order finite element model. In: Computer Methods in Applied Mechanics and Engineering, 192 (15). pp. 1821-1840.
Sahoo, Niranjan and Mahapatra, DR and Jagadeesh, G and Gopalakrishnan, S and Reddy, KPJ (2003) An accelerometer balance system for measurement of aerodynamic force coefficients over blunt bodies in a hypersonic shock tunnel. In: Measurement Science and Technology, 14 (3). pp. 260-272.
Chakraborty, A and Gopalakrishnan, S and Reddy, JN (2003) A new beam finite element for the analysis of functionally graded materials. In: International Journal of Mechanical Sciences, 45 (3). pp. 519-539.
Mahapatra, Roy D and Gopalakrishnan, S (2003) A spectral finite element model for analysis of axial–flexural–shear coupled wave propagation in laminated composite beams. In: Composite Structures, 59 (1). pp. 67-88.
Nag, A and Mahapatra, Roy D and Gopalakrishnan, S (2002) Identification of delamination in composite beams using spectral estimation and a genetic algorithm. In: Smart Materials and Structures, 11 (6). pp. 899-908.
Chakraborty, A and Mahapatra, Roy D and Gopalakrishnan, S (2002) Finite element analysis of free vibration and wave propagation in asymmetric composite beams with structural discontinuities. In: Composite Structures, 55 (1). pp. 23-36.
Gopalakrishnan, S (2002) Behaviour of isoparametric quadrilateral family of Lagrangian fluid finite elements. In: International Journal for Numerical Methods in Engineering, 54 (5). pp. 731-761.
Mahapatra, Roy D and Gopalakrishnan, S and Balachandran, B (2001) Active feedback control of multiple waves in helicopter gearbox support struts. In: Smart Materials and Structures, 10 (5). pp. 1046-1048.
Jayachandran, SA and Gopalakrishnan, S and Narayanan, R (2001) Explicit incremental matrices for the postbuckling analysis of thin plates with small initial curvature. In: Structural Engineering And Mechanics, 127 (3). pp. 283-295.
Gopalakrishnan, S and Devi, G (2000) A Lagrangian Quadratic Triangular Fluid Finite Element for Fluid-Structure Interaction Problems. In: International Journal of Computational Engineering Science, 1 (2). pp. 257-272.
Mahapatra, Roy D and Gopalakrishnan, S and Sankar, TS (2000) Spectral-Element-Based Solutions for Wave Propagation Analysis of Multiply Connected Unsymmetric Laminated Composite Beams. In: Journal of Sound and Vibration, 237 (5). pp. 819-836.
Gopalakrishnan, S and Devi, G (2000) Behaviour of Lagrangian triangular mixed fluid finite elements. In: Sadhana, 25 (1). pp. 21-35.
Gopalakrishnan, S (2000) A deep rod finite element for structural dynamics and wave propagation problems. In: International Journal for Numerical Methods in Engineering, 48 (5). pp. 731-744.
Chakraborty, A and Mahapatra, Roy D and Gopalakrishnan, S (2003) Finite element simulation of BAW propagation in inhomogeneous plate due to piezoelectric actuation. In: Lecture Notes in Computer Science, 2668 . pp. 715-724.
Mahapatra, Roy D and Gopalakrishnan, S (2003) A nonlinear spectral finite element model for analysis of wave propagation in solid with internal friction and dissipation. In: Lecture Notes in Computer Science, 2668 . pp. 745-754.
