Finite element analysis of adaptive inflatable structures with SMA strip actuator

Jin-Ho Roh; Jae-Hung Han; In Lee

doi:10.1117/12.599457

17 May 2005 Finite element analysis of adaptive inflatable structures with SMA strip actuator

Jin-Ho Roh, Jae-Hung Han, In Lee

Proceedings Volume 5764, Smart Structures and Materials 2005: Smart Structures and Integrated Systems; (2005) https://doi.org/10.1117/12.599457
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2005, San Diego, California, United States

Abstract

The interactions between the inflatable structure and shape memory alloy (SMA) strip actuators are investigated using finite element simulation. The numerical algorithm of the 3-D SMA thermomechanical constitutive equations based on Lagoudas model is implemented to analyze the unique characteristics of SMA strip. For the numerical results presented in this paper, the ABAQUS finite element program has been utilized with an appropriate user supplied subroutine (UMAT) for the modeling SMA strip. In this model of SMA strip, the shape memory effect is restricted to one-way applications. The geometrically nonlinear, updated Lagrangian equilibrium formulation implemented in ABAQUS is used for the numerical model of inflated membrane structures.

Citation Download Citation

Jin-Ho Roh, Jae-Hung Han, and In Lee "Finite element analysis of adaptive inflatable structures with SMA strip actuator", Proc. SPIE 5764, Smart Structures and Materials 2005: Smart Structures and Integrated Systems, (17 May 2005); https://doi.org/10.1117/12.599457

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