Abstract:The shielding and amplification effects of multiple inclusions and microcracks on the tip or the growth path of a main crack under dynamic loading are investigated using numerical simulations. The simulations employ a combined numerical tool based on the time-domain boundary element method together with the sub-region technique for multi-regions, the maximum circumferential stress criterion for crack-growth direction and discrete modelling for the crack propagation. New elements of constant length are added to… Show more
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