Wave diffraction-induced crack/cohesive strip growth based on rudimentary nonlinear models (Q1805176)

The reaction of a mode I two-dimensional semi-infinite crack to the diffraction of a plane tension wave in an unbounded solid is treated. A vanishingly thin cohesive zone, or strip, represents rudimentary crack edge yield, and two generic response laws that incorporate rudimentary nonlinear effects are studied. Simultaneous crack/zone growth at constant rates is treated, with pure zone growth recovered as a limit case. Both models involve multiple solution sets that can be obtained analytically. Attention focuses on those associated with uniform strip fields.