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Role of microstructure in the thermomechanical behavior of SMA composites

Article Abstract:

Numerical analysis is conducted on the thermomechanical response of a shape memory alloy (SMA) composite with ductile polymer matrix by employing a proven micromechanics model. The composite comprises ductile matrix and unidirectionally aligned SMA spheroidal inclusions. The analysis focuses on the effect of the shape and volume fraction of SMA inclusions on the overall thermomechanical response of composite and on the internal stress and strain evolution. The results are discussed.

Author: Cherkaoui, M., Song, Gu Quan, Sun, Qing Ping
Publisher: American Society of Mechanical Engineers
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 1999
Analysis, Microstructure, Microstructures, Shape-memory alloys, Shape memory alloys

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The role of rate effects and of thermomechanical coupling in shear localization

Article Abstract:

A study was conducted of a constitutive model of a face centered cubic metal to determine the role of rate effects and of thermomechanical coupling in adiabatic shear localization. Numerical simulations was used to analyze the effect of individual material parameters. Results have shown that the influence of material parameters on shear localization cannot be predicted due to complex coupling between several effects.

Author: Estrin, Y., Molinari, A., Mercier, S.
Publisher: American Society of Mechanical Engineers
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 1997
Research, Metals, Metals (Materials), Strains and stresses, Stresses (Materials), Cube, Cubes (Geometry)

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