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Elastic-plastic fracture

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Elementary engineering fracture mechanics

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Abstract

Linear elastic fracture mechanics (LEFM) can be usefully applied as long as the plate zone is small compared to the crack size. This is usually the case in materials where fracture occurs at stresses appreciably below the yield stress and under conditions of plane strain. In such circumstances the fracture can be characterized by K Ic, or G Ic. When plane stress prevails the crack tip plastic zone is larger than in the case of plane strain. If fracture still takes place at stresses which arc low in comparison with the yield stress there are ways to arrive at a satisfactory rationale to handle the problem. If, however, the plastic zone is large compared to the crack size (high fracture stress and/or high crack resistance) linear elastic fracture mechanics do not apply any longer.

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Authors
  1. David Broek
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© 1982 Martinus Nijhoff Publishers, The Hague

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Broek, D. (1982). Elastic-plastic fracture. In: Elementary engineering fracture mechanics. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4333-9_9

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  • DOI: https://doi.org/10.1007/978-94-009-4333-9_9

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-8425-3

  • Online ISBN: 978-94-009-4333-9

  • eBook Packages: Springer Book Archive

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