Computational analysis of compaction wave interactions with non-planar boundaries

Document Type

Conference Proceeding

Publication Date

12-1-2009

Abstract

The interaction of initially planar compaction waves with a stationary semi-circular rigid anvil is computationally examined at both the macro- and meso-scales. The macro-scale model accounts for elastic and inelastic volumetric deformation of the granular material and describes compaction induced heating in a thermodynamically consistent manner. The meso-scale model combines conservation principles with an elastic-viscoplastic constitutive theory to predict contact induced thermomechanical fields within grains. Meso-scale field predictions are locally averaged and compared to those given by the macro-scale model. Emphasis is placed on characterizing the evolution of spatial wave structure and compaction induced heating rate in the vicinity of the anvil surface. Maximum heating rates are predicted to occur along the anvil surface away from the high-pressure stagnation region. Macro- and meso-scale predictions qualitatively agree. © 2009 American Institute of Physics.

Publication Source (Journal or Book title)

AIP Conference Proceedings

First Page

1349

Last Page

1352

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