Non-linear dynamic thermomechanical behaviour of shape memory alloys

被引：25

作者：

Moussa, Mohamed O. ^{[1
]}

Moumni, Ziad ^{[1
]}

Doare, Olivier ^{[1
]}

Touze, Cyril ^{[1
]}

Zaki, Wael ^{[2
]}

机构：

[1] ENSTA ParisTech, Unite Mecan UME, F-91761 Palaiseau, France

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

来源：

JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES | 2012年 / 23卷 / 14期

关键词：

dynamic behaviour; hysteresis; shape memory alloy; pseudoelasticity; chaos; symmetry breaking; vibrations; thermomechanical coupling; natural frequencies; INDUCED MARTENSITIC-TRANSFORMATION; STRAIN-RATE; POLYCRYSTALLINE NITI; STRESS; CHAOS; MODEL; OSCILLATIONS; COMPRESSION; TENSION; SYSTEMS;

D O I：

10.1177/1045389X12448446

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The non-linear dynamic thermomechanical behaviour of superelastic shape memory alloys is investigated. To this end, the Zaki-Moumni model, initially developed for quasi-static loading cases, is extended to simulate the uniaxial forced oscillations of a shape memory alloy device. First, the influence of loading rate is accounted for by considering the thermomechanical coupling in the behaviour of NiTi shape memory alloy. Comparisons between simulations and experimental results show good agreement. Then, the forced response of a shape memory alloy device is investigated at resonance. Both isothermal and non-isothermal conditions are studied, as well as non-symmetric tensile-compressive restoring force. In the case of large values of forcing amplitudes, simulation results show that the dynamic response is prone to jumps, bifurcations and chaotic solutions.

引用

页码：1593 / 1611

页数：19

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