Why do cracks avoid each other?
Research output: Contribution to journal › Article
The experimentally known phenomenon that originally collinear mode I cracks seem to avoid each other before coalescence is studied by investigating the stability of straight crack paths. To this end a periodic array of approximately collinear but slightly curved cracks is considered. Stress intensity factors for modes I and II are derived and the growth of originally straight cracks under mode I conditions is studied after introduction of a disturbance that forces the cracks to deviate from a straight path. It is shown that the straight crack path is unstable, i.e. that tip to tip coalescence will not take place.
|Research areas and keywords||
Subject classification (UKÄ) – MANDATORY
|Journal||International Journal of Fracture|
|Publication status||Published - 1983|