Abstract
The crack tip stress and strain fields for stationary and growting cracks in elastic-plastic materials are calculated here and the results used to gain insight into ductile fracture criteria such as the R-curve. The size of the plastic zone ahead of the crack is estimated using several models. Knowing the size of the plastic zone relative to the component dimensions is an important step in determining whether to us linear elastic fracture mechanics or elastic-plastic fracture mechanics for a fracture prediction. Effects of large scale yielding are explored through slip line solutions.
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Zehnder, A.T. (2012). Elastic Plastic Fracture: Crack Tip Fields. In: Fracture Mechanics. Lecture Notes in Applied and Computational Mechanics, vol 62. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-2595-9_7
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DOI: https://doi.org/10.1007/978-94-007-2595-9_7
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