Displaying similar documents to “Moving interfacial Griffith crack between bonded dissimilar media.”

Comparison of crack propagation criteria in linear elastic fracture mechanics

Mikeš, Karel

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In linear fracture mechanics, it is common to use the local Irwin criterion or the equivalent global Griffith criterion for decision whether the crack is propagating or not. In both cases, a quantity called the stress intensity factor can be used. In this paper, four methods are compared to calculate the stress intensity factor numerically; namely by using the stress values, the shape of a crack, nodal reactions and the global energetic method. The most accurate global energetic method...