A DISCUSSION ABOUT THE EFFECTIVENESS ON USING A VARIATE-TRANSFORMATION TO FIND OUT SOLUTIONS OF MODE Ⅲ CRACK PROBLEMS IN POWER HARDENING MEDIA

摘要

By the use of the transformations of physical plane to strain plane and physical planeto stress plane,an analytic expression of the asymptotic solution near a modeⅢcrack tipin a power hardening medium can be obtained.In this paper the effectiveness of thetransformation is discussed.Analytical results show that the transformation is effectiveexcept for a special limit case of power hardening media—the ideal plastic materials.