Development of Family of Super Convergent Shear Deformable Finite Elements for the Analysis of Sandwich Beams with Soft Core

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.

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Abstract

Sandwich structures are widely used in aerospace and naval industries as they are light in weight and have high energy absorption capacities. Sandwich beams with soft core are the most commonly used structures in many applications. Analysis of sandwich beams is the key in its design and the development of new family of super convergent shear deformable finite elements are presented in this article. In this article, formulation of three different Super Convergent shear deformable finite elements with 4, 7, and 10 degrees of freedom respectively, for analysis of the sandwich beams with soft core are presented. The formulation considers the top, bottom face sheets and core as separate entities and are coupled by beam kinematics. The performance of these elements are validated by results available in the published literature. The article highlights the issues with the traditional elements for modeling sandwich beams and the advantages of the elements developed, in particular wave propagation analysis, are addressed in this article.

Item Type:	Journal Article
Publication:	International Journal for Computational Methods in Engineering Science and Mechanics
Publisher:	Bellwether Publishing, Ltd.
Additional Information:	The copyright for this article belongs to Bellwether Publishing, Ltd.
Keywords:	Composite beams and girders; Degrees of freedom (mechanics); Foams; Sandwich structures; Shear deformation; Static analysis; Vibration analysis; Wave propagation, Face sheets; Foam core; Free vibration; Governing equations; Sandwich beams; Super convergence; Timoshenko beam theory, Finite element method
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	30 Nov 2022 05:37
Last Modified:	30 Nov 2022 05:37
URI:	https://eprints.iisc.ac.in/id/eprint/78300

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