Strain Energy Density Failure Criterion: Mixed-Mode Crack Growth

Autor: Emmanuel E. Gdoutos
Rok vydání: 2020
Předmět:
Zdroj: Fracture Mechanics ISBN: 9783030350970
Fracture Mechanics ISBN: 9789401581608
Popis: So far, we have studied growth of a crack only for the case when the load is applied normal to the crack and such that the crack propagates in a self-similar manner. However, often the loads are not aligned to the orientation of the crack. In such cases, the crack-tip stress field is no longer governed by a single opening-mode stress intensity factor K I but by a combination of the three stress intensity factors K I, K II, and K III. Moreover, the direction of crack initiation is not known a priori but depends on a failure criterion involving some combination of K I, K II, and K III. As a rule the crack follows a curved path.
Databáze: OpenAIRE