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INSTABILITY AND HYSTERESIS IN THERMOELASTIC TENSION STRIPS

  • The Hong Kong University of Science and Technology

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

3 Citations (Scopus)

Abstract

Macroscopic domain formations, usually accompanying elastic instability, appear in NiTi polycrystalline shape memory alloy which undergoes a typical thermoelastic phase transition [1-3]. Different from the plasticity approach (e.g. Shaw & Kyriakides 1998 [4]), this paper applies the Ginzburg-Landau model to a non-local elastic FEM simulation on the thermoelastic tension strips. Many key features of the stress-induced domain formation and evolution observed in the experiments have been reproduced. Based on the simulations, we discuss the effects of the domain wall energy on the domain formation; and the relation between the elastic instability and the hysteresis during the superelastic deformation (domain formation, evolution and annihilation) in the thermoelastic system.

Original languageEnglish
Title of host publicationSolid Mechanics and its Applications
PublisherSpringer Science and Business Media B.V.
Pages227-238
Number of pages12
DOIs
Publication statusPublished - 1 Jan 2006
Externally publishedYes

Publication series

NameSolid Mechanics and its Applications
Volume142
ISSN (Print)0925-0042
ISSN (Electronic)2214-7764

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