Analytical model of functionally graded material/shape memory alloy composite cantilever beam under bending

Article

Viet, N. V., Zaki, W. and Umer, R.. 2018. "Analytical model of functionally graded material/shape memory alloy composite cantilever beam under bending." Composite Structures. 203, pp. 764-776. https://doi.org/10.1016/j.compstruct.2018.07.041
Article Title

Analytical model of functionally graded material/shape memory alloy composite cantilever beam under bending

ERA Journal ID3731
Article CategoryArticle
AuthorsViet, N. V. (Author), Zaki, W. (Author) and Umer, R. (Author)
Journal TitleComposite Structures
Journal Citation203, pp. 764-776
Number of Pages13
Year2018
PublisherElsevier
Place of PublicationUnited Kingdom
ISSN0263-8223
1879-1085
Digital Object Identifier (DOI)https://doi.org/10.1016/j.compstruct.2018.07.041
Web Address (URL)https://www.sciencedirect.com/science/article/pii/S0263822318311097?via%3Dihub
Abstract

A new analytical model for a functionally graded material (FGM)/shape memory alloy (SMA) laminated composite cantilever beam subjected to a concentrated tip load is developed. The novelty of this work lays in the analytical modelling of moment-curvature and shear force-shear strain relations, which are derived based on ZM model and Timoshenko’s theory for all stages during loading and unloading. A high-accuracy numerical solution and a three-dimensional finite element analysis (3D FEA) for the composite beam are carried out to validate the analytical solution. The results show very good agreement in each case. The influence of gradient direction, gradient index, temperature, and relative thickness ratio of SMA to functionally graded layer on superelasticity of carbon nanotube (CNT)-epoxy-based-FGM/SMA composite beam is also examined. The results show that the superelasticity of CNT-epoxy FGM/SMA composites increased with an increase in gradient index and decreased with an increase in thickness ratio. The temperature variations induced less effect on the superelasticity of FGM/SMA composites. Furthermore the composite beam with FGM layers having the Young’s modulus graded increasingly in the inward direction exhibits a better superelastic property in comparison with that with FGM layers having the Young’s modulus graded increasingly along the outward direction.

KeywordsFunctionally graded material; Shape memory alloy; Bending; Analytical model
ANZSRC Field of Research 2020401602. Composite and hybrid materials
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Institution of OriginUniversity of Southern Queensland
Byline AffiliationsKhalifa University, United Arab Emirates
Centre for Future Materials
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