132. MODELING OF AL/W GRANULAR POROUS COMPOSITES DURING DYNAMIC DEFORMATION
Department: Mechanical & Aerospace Engineering
Research Institute Affiliation: Graduate Program in Computational Science, Mathematics, and Engineering (CSME)
Faculty Advisor(s): David Benson | Vitali Nesterenko
Name: Karl Liberty Olney
Grad Year: 2013
Aluminum/Tungsten granular composites are materials which combine high density and strength with the ability to undergo bulk distributed fracture of Al matrix into small particles under impact or shock loading. They are processed using cold and hot isostatic pressing of W particles/rods in the matrix of Al powder. The poster will describe modeling of these materials under dynamic conditions simulating explosively driven expanding rings of the Al/W granular composite. It will be demonstrated that morphology of W component and bonding between Al particles dramatically affects their strength, shear localization and mode of fracture of Al matrix. The support for this project provided by the Office of Naval Research Multidisciplinary University Research Initiative Award N00014-07-1-0740.