Abstract
The energy consumed in the growth of crack in an elastic-plastic material is mostly the work associated with plastic deformation around the crack. Methods for computing G and J in elastic-plastic fracture are discussed in this chapter. The limitations of a J based approach to predicting fracture are explored as are several other criteria for ductile fracture, including the J–Q theory, critical crack tip opening angle and the use of cohesive zone models.
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Notes
- 1.
The cohesive zone model is one of the most popular approaches in computational fracture mechanics. A January 2008 keyword search among journal articles for “cohesive zone” produced over 1400 hits. The same search, repeated in July 2011, produced over 2200 hits.
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Zehnder, A.T. (2012). Elastic Plastic Fracture: Energy and Applications. In: Fracture Mechanics. Lecture Notes in Applied and Computational Mechanics, vol 62. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-2595-9_8
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