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Fitting-free hyperelastic strain energy formulation for triaxial weave fabric composites

This paper presents the formulation of the hyperelastic strain energy density function for triaxial weave fabric composites. The energy function, which comprises three components: matrix, tow, and interaction, demonstrates a nonlinear stress–strain response. The model constitutes the material expres...

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主要作者: Kueh, Ahmad Beng Hong
格式: Article
出版: 2012
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TA Engineering (General). Civil engineering (General)
在线阅读:http://eprints.utm.my/id/eprint/46994/
http://dx.doi.org/10.1016/j.mechmat.2012.01.001
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spelling my.utm.469942017-09-28T01:26:25Z http://eprints.utm.my/id/eprint/46994/ Fitting-free hyperelastic strain energy formulation for triaxial weave fabric composites Kueh, Ahmad Beng Hong TA Engineering (General). Civil engineering (General) This paper presents the formulation of the hyperelastic strain energy density function for triaxial weave fabric composites. The energy function, which comprises three components: matrix, tow, and interaction, demonstrates a nonlinear stress–strain response. The model constitutes the material expressions, initial straightening and elastic recovery coefficients, which carry mechanical meaning, properly defined on the basis of micromechanics and elementary structural theory. In the solution, existing widely used but highly iterative fitting procedure that can be cumbersome and computationally expensive is circumvented. It is found that this model captures the experimental response with exceptional agreement in both longitudinal and transverse stretching. During in-plane uniaxial tension, affected invariants are those aligned along the load direction and those off-axis, corresponding to longitudinal and transverse stretching, respectively. Mechanical isotropy has been found valid only in low strain regime. Regardless of load direction, matrix and interaction energies are found to be of isotropic nature. 2012 Article PeerReviewed Kueh, Ahmad Beng Hong (2012) Fitting-free hyperelastic strain energy formulation for triaxial weave fabric composites. Mechanics Of Materials, 47 . pp. 1-23. ISSN 0167-6636 http://dx.doi.org/10.1016/j.mechmat.2012.01.001
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Kueh, Ahmad Beng Hong
Fitting-free hyperelastic strain energy formulation for triaxial weave fabric composites
description This paper presents the formulation of the hyperelastic strain energy density function for triaxial weave fabric composites. The energy function, which comprises three components: matrix, tow, and interaction, demonstrates a nonlinear stress–strain response. The model constitutes the material expressions, initial straightening and elastic recovery coefficients, which carry mechanical meaning, properly defined on the basis of micromechanics and elementary structural theory. In the solution, existing widely used but highly iterative fitting procedure that can be cumbersome and computationally expensive is circumvented. It is found that this model captures the experimental response with exceptional agreement in both longitudinal and transverse stretching. During in-plane uniaxial tension, affected invariants are those aligned along the load direction and those off-axis, corresponding to longitudinal and transverse stretching, respectively. Mechanical isotropy has been found valid only in low strain regime. Regardless of load direction, matrix and interaction energies are found to be of isotropic nature.
format Article
author Kueh, Ahmad Beng Hong
author_facet Kueh, Ahmad Beng Hong
author_sort Kueh, Ahmad Beng Hong
title Fitting-free hyperelastic strain energy formulation for triaxial weave fabric composites
title_short Fitting-free hyperelastic strain energy formulation for triaxial weave fabric composites
title_full Fitting-free hyperelastic strain energy formulation for triaxial weave fabric composites
title_fullStr Fitting-free hyperelastic strain energy formulation for triaxial weave fabric composites
title_full_unstemmed Fitting-free hyperelastic strain energy formulation for triaxial weave fabric composites
title_sort fitting-free hyperelastic strain energy formulation for triaxial weave fabric composites
publishDate 2012
url http://eprints.utm.my/id/eprint/46994/
http://dx.doi.org/10.1016/j.mechmat.2012.01.001
_version_ 1643652203544576000
score 13.251813

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