1. Simulation of the Mechanical Properties of an Aluminum Matrix Composite using X-ray Microtomography.
- Author
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Watson, I. G., Lee, P. D., Dashwood, R. J., and Young, P.
- Subjects
COMPOSITE materials ,ALUMINUM ,FINITE element method ,EXTRUSION process ,IMAGE analysis ,ELASTOPLASTICITY - Abstract
Aluminum-based particulate-reinforced metal matrix composites (PMMCs) frequently have a heterogeneous distribution of reinforcement particles whether produced by a powder or liquid processing route. The applicability of X-ray microtomography (XMT) for the characterization of this heterogeneity, and its influence on final properties, was investigated for the case of a powder blended and extruded AA2124 matrix with Ni particulate. Three-dimensional image analysis techniques were used to quantify the embedded Ni particle size distribution and the extent and texture of clusters formed. The XMT data were exploited as a rapid method to generate a microstructurally accurate and robust three-dimensional mesh for input for finite-element modeling. Simulation of the elastoplastic response of the material showed excellent correlation with experimental results. [ABSTRACT FROM AUTHOR]
- Published
- 2006
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