Numerical thermomechanical modelling of shape memory alloy wires

被引：44
|
作者：
Meier, H [1 ]
Oelschlaeger, L [1 ]
机构：
[1] Ruhr Univ Bochum, Res Ctr Shape Memory Technol, Bochum, Germany
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2004年 / 378卷 / 1-2期
关键词：
SMA-wires; SMA-actuator; time response; activation; numerical model; thermomechanical modelling;
D O I：
10.1016/j.msea.2003.09.113
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The dynamic properties of straight shape memory alloy (SMA)-actuator wires are characterised by the rate of heating and cooling procedures. Based on an analysis of energy fluxes into and out of the actuator, a numerical model that simulates the time response of SMA-wires is presented. Cause variables that have an impact on the actuator behaviour (actuator geometry, provided load, arbitrary time variant heating current, environmental conditions) can easily be implemented in the model. Taking these changing boundary conditions into consideration, the model enables a simple design layout for technical solutions with straight SMA-wires. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：484 / 489
页数：6
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