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Fracture from a straight crack subjected to mixed mode loading

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Author

Summary, in English

Fracture from a straight crack under mixed mode loading conditions and small scale of yielding is studied. It is assumed that crack growth occurs in either mode I or mode II. Comparison of theoretically obtained values of the mode I stress intensity factor at incipient kinking with experimental results indicates that mode I is preferred to mode II when the loading is such that the crack surfaces are traction-free, i.e. in the absence of a confining pressure. Mode II would be preferred only if the ratio K II c/K I c between the stress intensity factors is very low, between 0.38–0.81, depending on the load situation. Since there are reasons to believe that most materials are characterized by higher values of K II c/K I c, the conclusion is that mode II hardly occurs in the absence of a high confining pressure.

Department/s

Publishing year

1987

Language

English

Pages

257-263

Publication/Series

International Journal of Fracture

Volume

32

Issue

4

Document type

Journal article

Publisher

Springer

Topic

  • Applied Mechanics
  • Engineering and Technology

Status

Published

ISBN/ISSN/Other

  • ISSN: 0376-9429