Abstract
Mode I crack growth under large scale yielding conditions is studied by comparing numerical plane strain analyses for four different test specimen geometries. The fracture process is represented in terms of a cohesive zone model, for which the separation work per unit area and the peak stress required for separation are basic parameters; but where also a plastic strain effect on the fracture process is incorporated. The differences between crack growth resistance curves predicted for different specimen geometries are in general agreement with the different T–stress levels obtained for different specimens. In addition, a specimen size dependence of the crack growth resistance curves is illustrated.
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Tvergaard, V. (1997). Relations between Crack Growth Resistance and Fracture Process Parameters Under Large Scale Yielding. In: Willis, J.R. (eds) IUTAM Symposium on Nonlinear Analysis of Fracture. Solid Mechanics and its Applications, vol 49. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5642-4_9
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DOI: https://doi.org/10.1007/978-94-011-5642-4_9
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