Abstract
In this paper, an infinite sheet with a crack is studied using continuum damage mechanics technique. The formulation is based on the hypothesis of incremental complementary energy equivalence model for damage evaluation. Damage distributions in the region of a macrocrack tip are calculated for an elastic-perfectly plastic material. The size of the damage zone is also derived via the Dugdale model with damage which considers the interactions between the macrocracks and microcracks. To assess the results, comparisons are made between proposed damage model, Dugdale plastic model and finite element solutions. Good agreement is observed.
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Mou, Y., Han, R.P. Damage zones based on Dugdale model for materials. Int J Fract 68, 245–259 (1994). https://doi.org/10.1007/BF00013070
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DOI: https://doi.org/10.1007/BF00013070