Dynamic crack initiation assessment with the coupled criterion

An extension of the coupled criterion (CC) finite fracture mechanics is established in order to assess dynamic crack initiation. The main change compared classical quasi-static approach consists considering velocity profile during initiation instead assuming an instantaneous proposed enables study under either or loading. It illustrated on several examples including transverse cracking laminates, drilled specimen tension compression and a V-notch subjected time-dependent CC predicts over length occurring given time depending velocity. influence significative provided large enough. Taking into account effects better representation experimentally observed variation stress as function hole size tensile loading specimens.