INVESTIGATION ON THE ASYMPTOTIC SOLUTION FOR THE MODE III MOVING CRACK-TIP FIELD

Adopting an elastic-viscoplastic model, the asymptotic problem of mode Ⅲ moving crack-tip filld is investigated. This paper gives the forms of all asymptotic solutions through the analysis of the dynamic crack propagation and quasi-static crack growith problems, and proves that the quasi-statically growing crack solution is the special case of dynamic propagating solution.