Bending models for superelastic shape memory alloy laminated composite cantilever beams with elastic core layer

Article


Viet, N. V., Zaki, W. and Umer, R.. 2018. "Bending models for superelastic shape memory alloy laminated composite cantilever beams with elastic core layer." Composites Part B: Engineering. 147, pp. 86-103. https://doi.org/10.1016/j.compositesb.2018.04.035
Article Title

Bending models for superelastic shape memory alloy laminated composite cantilever beams with elastic core layer

ERA Journal ID4883
Article CategoryArticle
AuthorsViet, N. V. (Author), Zaki, W. (Author) and Umer, R. (Author)
Journal TitleComposites Part B: Engineering
Journal Citation147, pp. 86-103
Number of Pages18
Year2018
PublisherElsevier
Place of PublicationUnited Kingdom
ISSN1359-8368
Digital Object Identifier (DOI)https://doi.org/10.1016/j.compositesb.2018.04.035
Web Address (URL)https://www.sciencedirect.com/science/article/pii/S1359836817341744?via%3Dihub
Abstract

This paper develops a novel and simple analytical model to investigate the bending response of superelastic shape memory alloy (SMA) laminated composite cantilever beam during a complete loading/unloading cycle based on ZM's three-dimensional (3D) thermomechanical model for SMAs and Timoshenko beam theory. The laminated composite beam configuration is formed by two SMA layers bonded to one elastic core layer. The results show a superelastic behavior of the composite. The moment-curvature response, martensite distribution along vertical direction, stress distribution along vertical and axial direction, tip deflection of the composite are revealed. The effects of temperature, thickness ratio and stiffness ratio on the moment-curvature response are also investigated. 3D finite element analysis (FEA) is carried out in parallel to validate against results obtained from analytical and exact numerical models. A good agreement is obtained. Whereby the maximum observed difference in terms of curvature is 7% between analytical and 3D FEA data, and 0.5% between analytical and accurate numerical solutions at moment during the loading cases. This novel work sheds light on the fundamental and deep knowledge of SMA composite's static bending behavior. That will be very helpful and significant for other researchers to furtherly investigate on dynamical behavior of this and other SMA laminated composite configurations.

Keywordslaminates; analytical modelling; numerical analysis; finite element analysis (FEA); shape memory alloy
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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