T. Nishioka1, S. Tchouikov1, T. Fujimoto1
CMC-Computers, Materials & Continua, Vol.3, No.3, pp. 147-154, 2006, DOI:10.3970/cmc.2006.003.147
Abstract In this study, phenomena of multiple
branching of dynamically propagating crack are investigated
numerically. The complicated paths of cracks
propagating in a material are simulated by moving finite
element method based on Delaunay automatic triangulation
(MFEM BODAT), which was extended for
such problems. For evaluation of fracture parameters for
propagating and branching cracks switching method of
the path independent dynamic J integral was used. Using
these techniques the generation phase simulation of
multiple dynamic crack branching was performed. Various
dynamic fracture parameters, which are almost impossible
to obtain by experimental technique alone, were
accurately evaluated. More >
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