Modeling and numerical analysis of the shape memory alloy strip
(0) As a new smart material, shape memory alloy (SMA) has been considered in many fields of applications due to its unique capability which exhibits in the shape memory effect (SME) and pseudoelasticity. After undergoing the ther-mo-mechanical training, SMA can also get an especial performance which is called twoway shape memory effect. In this work, we investigate mainly the method of the numerical simulation in the SMA component: SMA strip, which is expected to extend upon heating and shorten on cooling along the strip. The return mapping algorithm of the 3-D SMA thermomechanical constitutive equations based on BoydLagoudas model is used in the finite element analysis to describe the material features of the SMA. The model is then implemented into ABAQUS using the userdefined material subroutine which is written in the FORTRAN code to inherit most features of the commercial finite element package. The SMA component which has a certain initial transformation strain can emerge considerable deflection and complex phase transformation process.
SMA strip ABAQUS UMAT Return mapping algorithm
Pengtao Zhao Jinhao Qiu Huichen Yu
Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation, National Key Laboratory of State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aerona
国际会议
2012 International Symposium on Structural Integrity 2012国际结构完整性学术研讨会 ISSI 2012
济南
英文
113-119
2012-10-31（万方平台首次上网日期，不代表论文的发表时间）