Abstract
In this paper we discuss analytical and numerical results concerning rate-dependent dynamic crack processes in homogeneous and heterogeneous materials. Rate-dependency is introduced in the model through a newly formulated interface law. Three significant examples are presented: (i) the mode-I dynamic decohesion between two linear elastic half-planes under a tensile stress pulse; (ii) the uniaxial spall test and (iii) the debonding of a thin layer from a rigid substrate. The results show that rate-dependent cohesive laws can play an important role in dynamic crack processes.
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