Direct Numerical Determination of the Asymptotic Cyclic Behavior of Pseudoelastic Shape Memory Structures

被引：22

作者：

Morin, Claire ^{[1
]}

Moumni, Ziad ^{[1
]}

Zaki, Wael ^{[2
]}

机构：

[1] ENSTA Paristech, Mat & Struct Lab, F-91761 Palaiseau, France

[2] Khalifa Univ Sci Technol & Res, Abu Dhabi, U Arab Emirates

来源：

JOURNAL OF ENGINEERING MECHANICS-ASCE | 2011年 / 137卷 / 07期

关键词：

Smart materials; Numerical analysis; Intelligent structures; Cyclic strength; POLYCRYSTALLINE SMAS; THERMOMECHANICAL BEHAVIOR; PHENOMENOLOGICAL ANALYSIS; ENERGY APPROACH; ALLOYS; MODEL; FORMULATION; FATIGUE;

D O I：

10.1061/(ASCE)EM.1943-7889.0000249

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The design of shape memory alloys (SMAs) structures against fatigue requires the computation of the stabilized mechanical state. The classical computation method, based on a plasticity-like algorithm, requires a step-by-step calculation, leading to prohibitive computation time to reach this stabilized state. To overcome this issue, we propose to extend the direct cyclic method (DCM), for elastoplastic structures, for use with the Zaki-Moumni (ZM) model for SMAs. DCM is a large time increment method in which a periodicity condition is enforced on the state variables. Comparison with the classical incremental approach shows considerable reduction in computation time. DOI: 10.1061/(ASCE)EM.1943-7889.0000249. (C) 2011 American Society of Civil Engineers.

引用

页码：497 / 503

页数：7

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