The asymptotic analysis of he stress and strain field at a propagating crack tip is given by means of an elastic-viscoplastic model.

• 摘要 本文采用一种弹性/粘塑性模型,对扩展裂纹尖端应力应变场进行了渐近分析。文中假定,弹性阶段的粘性效应可以略去,仅在塑性应变中粘性才起作用。