Numerical model for an epoxy beam reinforced with superelastic shape memory alloy wires

N. V. Viet; W. Zaki; R. Umer

doi:10.1117/12.2296383

22 March 2018 Numerical model for an epoxy beam reinforced with superelastic shape memory alloy wires

N. V. Viet, W. Zaki, R. Umer

Author Affiliations +

Proceedings Volume 10596, Behavior and Mechanics of Multifunctional Materials and Composites XII; 105961Y (2018) https://doi.org/10.1117/12.2296383
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2018, Denver, Colorado, United States

Abstract

We present a numerical solution for a smart composite beam consisting of an epoxy matrix reinforced with unidirectional superelastic shape memory alloy (SMA) fibers with uniform circular cross section. The beam is loaded by a tip load, which is then removed resulting in shape recovery due to superelasticity of the SMA wires. The analysis is carried out considering a representative volume element (RVE) of the beam consisting of one SMA wire embedded in epoxy. The analytical model is developed for a superelastic SMA/epoxy composite beam subjected to a complete loading cycle in bending. Using the proposed model, the moment-curvature profile, martensite volume fraction variation, and axial stress are determined. The results are validated against three-dimensional finite element analysis (3D FEA) for the same conditions. The proposed work is a contribution toward better understanding of the bending behavior of superelastic SMA-reinforced composites.

Citation Download Citation

N. V. Viet, W. Zaki, and R. Umer "Numerical model for an epoxy beam reinforced with superelastic shape memory alloy wires", Proc. SPIE 10596, Behavior and Mechanics of Multifunctional Materials and Composites XII, 105961Y (22 March 2018); https://doi.org/10.1117/12.2296383

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