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Appl. Sci. 2017, 7(3), 289; doi:10.3390/app7030289

An Explicit Approach Toward Modeling Thermo-Coupled Deformation Behaviors of SMPs

Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Yanchang Road 149, Shanghai 200072, China
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Academic Editors: Bertrand Lenoir and Patrick A. Fairclough
Received: 25 December 2016 / Revised: 9 February 2017 / Accepted: 23 February 2017 / Published: 16 March 2017
(This article belongs to the Section Materials)
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Abstract

A new elastoplastic J 2 -flow models with thermal effects is proposed toward simulating thermo-coupled finite deformation behaviors of shape memory polymers. In this new model, an elastic potential evolving with development of plastic flow is incorporated to characterize the stress-softening effect at unloading and, moreover, thermo-induced plastic flow is introduced to represent the strain recovery effect at heating. It is shown that any given test data for both effects may be accurately simulated by means of direct and explicit procedures. Numerical examples for model predictions compare well with test data in literature. View Full-Text
Keywords: shape memory polymers; thermo-coupled effects; finite deformations; stress softening; elastoplasticity models; explicit simulation shape memory polymers; thermo-coupled effects; finite deformations; stress softening; elastoplasticity models; explicit simulation
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Li, H.; Ding, X.-F.; Yin, Z.-N.; Xiao, H. An Explicit Approach Toward Modeling Thermo-Coupled Deformation Behaviors of SMPs. Appl. Sci. 2017, 7, 289.

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