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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