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Sneak Peek

Theory of Large-Scale Plastic Deformation in Amorphous Materials: A Progress Report
James S. Langer
From MRS Proceedings Volume 1048E

Abstract: The goal of recent shear-transformation-zone (STZ) theories has been to construct a phenomenological description of amorphous plasticity that is based on physical principles and molecular models, and yet is simple enough to be useful in predicting the performance of real materials. In reporting progress toward this goal, I focus on the dynamic role played by the effective disorder temperature (a generalization of the free-volume) in controlling relaxation rates and predicting shear-banding instabilities.

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