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The instability improvement of the shape memory alloy composite plates subjected to in-plane parabolic temperature distribution

A. Rasid, Zainudin and Zahari, R. and Ayob, Amran (2014) The instability improvement of the shape memory alloy composite plates subjected to in-plane parabolic temperature distribution. Applied Mechanics and Materials, 554 . pp. 32-36. ISSN 1660-9336

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Official URL: http://dx.doi.org/10.4028/www.scientific.net/AMM.5...

Abstract

The designs of thin structure components of aerospace vehicles require the consideration of thermal buckling and post-buckling problems. Thermal buckling of the structures in the aerospace environment may occur due to non-uniformly distributed temperature field. A finite element method study on the post-buckling of composite plates with embedded shape memory alloy wires was conducted. The plates were subjected to in-plane and through-thickness non-uniform thermal loadings where the non-uniform temperature distributions considered were parabolic in-plane and linearly varying through-thickness thermal loadings that may act separately or in combination. Recovery stress induced by the shape memory alloy was exploited to improve the thermal buckling behaviours of the composite plates. A non-linear finite element model along with its source codes that considered the recovery stress of the shape memory alloy, the non-uniform temperature field, the temperature dependent properties of the SMA and the composite matrix were developed. The post-buckling paths that showed the effect of the shape memory alloy on the thermal post-buckling behaviour of composite plates were generated using the source codes. It was found that the strain energy tuning method of the shape memory alloy greatly improved the post-buckling behaviour of composite plates subjected to the non-uniform temperature distributions.

Item Type:Article
Uncontrolled Keywords:parabolic thermal distribution, post-buckling
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Mechanical Engineering
ID Code:62974
Deposited By: Fazli Masari
Deposited On:03 Oct 2017 06:58
Last Modified:03 Oct 2017 06:58

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