Abstract
Ductile crack growth is examined by a simplified damage model, where the damage zone is localized in front of the crack tip. The continuum damage model is implemented into a Dugdale-Barenblatt-type cohesive zone model. The elastic-plastic crack growth problem is solved by the Finite Element Method. A good agreement of the numerical results with experimental and numerical data available in literature is obtained. Preventing the occurrence of a process zone with vanishing width, mesh independent results are obtained for stationary cracks as well as for growing cracks.
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Hohe, J., Baaser, H. & Gross, D. Analysis of ductile crack growth by means of a cohesive damage model. Int J Fract 81, 99–112 (1996). https://doi.org/10.1007/BF00033176
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DOI: https://doi.org/10.1007/BF00033176