Paper Title:
Continuum Modeling on Macroscopic Domain Patterns during Stress Induced Phase Transition in NiTi Tubes
  Abstract

Recent experiment [1] revealed many new characteristics of the domain patterns in a superelastic polycrystalline NiTi tube during tensile loading, such as domain wall instability and branching, dynamic topology transition of domain patterns. In this paper, we use the continuum mechanics approach and model the polycrystal as a phase-transformable continuum described by non-local nonlinear elasticity [2]. We simulate the equilibrium macroscopic domain patterns and their evolution in the tubes under tensile loading by the nonlocal Finite Element Method (FEM). It is revealed that the loading path dependence and dynamic topology transition of domain patterns are mainly due to thermodynamic metastability of the tube system. Our simulations capture all the key features of the domain patterns observed in the NiTi polycrystalline tubes.

  Info
Periodical
Advanced Materials Research (Volumes 47-50)
Edited by
Alan K.T. Lau, J. Lu, Vijay K. Varadan, F.K. Chang, J.P. Tu and P.M. Lam
Pages
964-967
DOI
10.4028/www.scientific.net/AMR.47-50.964
Citation
Y. J. He, Q. P. Sun, "Continuum Modeling on Macroscopic Domain Patterns during Stress Induced Phase Transition in NiTi Tubes ", Advanced Materials Research, Vols. 47-50, pp. 964-967, 2008
Online since
June 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xiao Wei Gao, Chuan Zeng Zhang
Abstract:In this paper, an isotropic elastic damage analysis is presented by using a meshless boundary element method (BEM) without internal cells....
1261
Authors: L. Yu, Shou Wen Yu, Xi Qiao Feng
Abstract:In this paper, a phenomenological, nonlinear constitutive relation of ferroelectric ceramics is established by considering the fact that...
813
Authors: R.H. Zhou, Qing Ping Sun
Abstract:Superelastic NiTi polycrystalline tubes, when subjected to quasi-static stretching, transform from an initial austenite phase to a...
1090
Authors: Jian She Peng, Gang Xie, Liu Yang, Yu Quan Yuan
Chapter 3: General Mechanical Engineering
Abstract:This paper presents a new time-domain DQ (differential quadrature) method for structural vibration analysis. It adopts differential...
957
Authors: Qi Ge, Feng Xiong, Qun Yi Huang
Chapter 4: Other Engineering Solutions for Manufacturing
Abstract:This article reports a sub-domain method to analyze the dynamic interaction of soil-high-rise building group considering sit effect, which is...
903