Abstract
This chapter aims to model the mechanical behavior of particle-reinforced metal matrix composites with particle cracking. Specifically a micromechanics-based elastoplastic constitutive model is coupled with damage mechanics due to particle cracking to predict the overall mechanical behavior of particle-reinforced metal matrix composites. Unidirectionally aligned spheroidal elastic particles, some of which contain penny-shaped cracks, are randomly distributed in the elastoplastic metal matrix. These imperfect particles, attributed to progressive particle cracking, are modeled by using the double-inclusion concept. The ensemble-volume averaged homogenization procedure is employed to estimate the effective yield function of the damaged composites. The elastoplastic mechanical behavior of particulate composites under uniaxial loading condition is simulated and compared with available experimental results.
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Sun, L.Z., Liu, H.T., Ju, J.W. (2014). Particle-Cracking Modeling of Metal Matrix Composites. In: Voyiadjis, G. (eds) Handbook of Damage Mechanics. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8968-9_9-1
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DOI: https://doi.org/10.1007/978-1-4614-8968-9_9-1
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