Monday, May 12

8:30 AM-9:15 PM
Chair: Geoffrey B. McFadden, National Institute of Standards and Technology
Peale C Room

Morphological Evolution in Elastically Stressed Solids: From Equilibrium to Dynamics

Elastic stress is present in a broad class of multi-phase materials. Despite this, the ability to predict the temporal evolution of microstructure in these systems has been limited. This is, in large part, because microstructural evolution is described by a solution to a strongly nonlinear free-boundary problem.

The speaker will examine the effects of stress generated by a particle-matrix misfit in an elastically anisotropic solid on the morphology of an isolated particle, as well as the dynamics of microstructural development in multiparticle systems. He will illustrate, by example, the qualitatively new phenomena introduced by the presence of elastic stress, and discuss open mathematical issues for future work.

Peter W. Voorhees
Department of Materials Science and Engineering, Northwestern University

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MMD, 12/9/96