Why do cracks avoid each other?
Författare
Summary, in English
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.
Avdelning/ar
Publiceringsår
1983
Språk
Engelska
Sidor
37-45
Publikation/Tidskrift/Serie
International Journal of Fracture
Volym
23
Issue
1
Dokumenttyp
Artikel i tidskrift
Förlag
Springer
Ämne
- Applied Mechanics
- Engineering and Technology
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0376-9429