Estimation of material properties of Metal Matrix Composites using Finite Element Method in the presence of micromechanics damages

Rao, MVP and Raj, D and Harursampath, D and Renji, K (2020) Estimation of material properties of Metal Matrix Composites using Finite Element Method in the presence of micromechanics damages. In: 6th International Conference on Recent Advances in Composite Materials, ICRACM 2019, 25-28, February 2019, Varanasi, pp. 1135-1143.

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Abstract

Metal matrix composites have growing importance in aerospace industries. Composite materials are heterogeneous in nature and require large number of homogenized material properties to carry out the structural analysis at macro-scale level. The values of these properties change as a function of the volume fraction of the constituent materials. In the present work a micromechanics model subjected to unified periodic boundary conditions is developed based on the Finite Element Method. In the first part of the work, Representative Unit Cell (RUC) is developed for a healthy case; the estimated material properties for this case are compared with the existing literature values. In the second part of the work, the micromechanics models having micromechanics damages like interfacial debonding, fiber cracking and matrix yielding are developed following the concepts and methodology used in the development of healthy RUC. The developed RUC model with micromechanics damages is based on the cohesive zone surface and failed element concept for modeling interfacial debonding and fiber cracking or matrix yielding respectively in the finite element framework. This model is analyzed to estimate the deteriorated elastic moduli in the presence of these micromechanics damages.

Item Type:	Conference Paper
Publication:	Materials Today: Proceedings
Publisher:	Elsevier Ltd
Additional Information:	cited By 0; Conference of 6th International Conference on Recent Advances in Composite Materials, ICRACM 2019 ; Conference Date: 25 February 2019 Through 28 February 2019; Conference Code:157883
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	18 Aug 2020 10:16
Last Modified:	18 Aug 2020 10:16
URI:	http://eprints.iisc.ac.in/id/eprint/64980

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