文章基本信息

标题：Computational Modeling of Superelastic Behaviors of Shape Memory Alloy Devices Under Combined Stresses
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作者：Yutaka TOI ; Daegon CHOI
期刊名称：Journal of Computational Science and Technology
电子版ISSN：1881-6894
出版年度：2008
卷号：2
期号：4
页码：535-546
DOI：10.1299/jcst.2.535
出版社：The Japan Society of Mechanical Engineers
摘要：The three-dimensional incremental finite element formulation for the multiaxial behavior of shape memory alloy devices is proposed in the present study by considering the coupling effect of the axial and torsional behaviors of shape memory alloys. The previously proposed one-dimensional constitutive model for shape memory alloy devices is extended to take account of the multiaxial stress state introducing some new material constants. The calculated results are compared with the uniaxial, purely torsional and multiaxial test results for NiTi tubes to illustrate the validity of the proposed computational modeling.
关键词：Combined Stress;Computational Mechanics;Constitutive Equation;Finite Element Method;Shape Memory Materials