Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10627645 | Composites Part A: Applied Science and Manufacturing | 2011 | 9 Pages |
Abstract
Molecular dynamics simulations are carried out to parameterize and obtain a traction-separation law for a ductile-brittle interface in tensile and shear loadings at high temperatures. Traditionally the interface is characterized by a cohesive zone model (CZM) with the traction-separation law assumed or parameterized through experiments. The experimental determination of the shape of the CZM has proved to be difficult. In this study a traction-separation law is thus obtained for an aluminum-silicon carbide composite system by conducting molecular dynamics simulations. The generated parameterized traction-separation law is then input into a finite element model to predict the stress-strain response of the metal matrix composite under high strain rate loading and compared with experimental results.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Chinmaya R. Dandekar, Yung C. Shin,