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Micromechanical Modelling of Shape Memory Alloy Composites
Author(s) -
Wang YF,
Wang XM,
Yue ZF
Publication year - 2004
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.200400724
Subject(s) - sma* , composite material , materials science , shape memory alloy , finite element method , fiber , volume fraction , phase (matter) , isothermal process , matrix (chemical analysis) , micromechanics , alloy , modulus , structural engineering , composite number , mathematics , engineering , chemistry , physics , organic chemistry , combinatorics , thermodynamics
An isothermal finite element method (FEM) model has been applied to study the behavior of two kinds of shape memory alloy (SMA) composites. For SMA‐fiber reinforced normal metal composites, the FEM analysis shows that the mechanical behavior of the composites depends on the SMA volume fraction. For normal metal‐fiber reinforced SMA matrix composites, the SMA phase transformation is affected by the increasing Young’s modulus of the metal fiber. The phase transformation was also treated using a simple numerical analysis, which assumes that there are uniform stresses and strains distributions in the fiber and the matrix respectively. It is found that there is an obvious difference between the FEM analysis and the simple numerical assessment. Only FEM can provide reasonable predictions of phase transformations in SMA/normal metal composites.