Simulation of the Mechanical Behaviour of Metal Matrix Composites

Abstract:

A model based on the geometry of the phases is introduced in order to investigate the mechanical properties of interpenetrating microstructures. In order to characterize the elastic and elastic-plastic properties of the composite a self consistent unit cell model is applied on a wide range of volume fractions for an Al/TiO₂ composite. Besides the volume fraction a microstructural based parameter is used, the matricity, to describe the mutual circumvention of both phases. Computations are carried out for different temperatures and void volume fractions. In addition a conservative fracture criterion based on critical normal stresses is applied to derive realistic stress strain curves.

• Periodical: Materials Science Forum (Volume 678)
• Pages: 49-60
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.678.49
• Online since: February 2011
• Authors: Siegfried Schmauder, Ulrich Weber, Andreas Reuschel, Markus Willert
• Keywords: Homogenization, Matrix Composite, Mechanical Behavior, Metal Composites, Self Consistent Unit Cell Model

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DOI: 10.1016/s1359-6462(98)00062-1

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