Font Size: 

In this study, to imitate turtle’s lag, SMA(Shape memory alloy) embedded composite that has various stacking sequence is used. Bending and twisting deformation is induced by large phase transformation strain and recovering stress of SMA. In order to predict the deformation of composite, finite element method and analytical method based on the classical laminated plate theory are used. To represent the behavior of SMA, Lagoudas model is used. From this study, the bending curvature and twisting angle is estimated with respect to various stacking sequences and angles. The result obtained by analytical method shows a good agreement with the result obtained by FEM.

Shape-Memory-Alloy; Finite Element Method; Classical Laminated Plate Theory; Biomimetics