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Constitutive Models for Deformation and Fracture of Metals

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Constitutive models form an important link towards predicting the behaviour of materials under dynamic conditions. This talk will discuss the construction and implementation of models for metals based on observed material properties, in particular the thermally activated movement of dislocations through the structure, and the generation and growth of voids leading to failure. The talk will also discuss methods for generating suitable stress data over appropriate ranges of temperatures and strain rates, and issues associated with the data and the models. Finally examples will be given of the implementation of the models into dynamic numerical simulations.

This talk is part of the PCS Fracture and Shock Physics series.

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