Stress and Crack-Displacement Intensity Factors in Elastodynamics

Publisher Summary This chapter discusses stress and crack-displacement intensity factors in elastodynamics. The intensity factors can be applied for the steady-state and the transient problems of a moving crack with a constant velocity V. The chapter discusses the equivalence between dynamic fracture criterions and introduces the new J-integral for moving crack. The near-tip fields are of the same form for steady-state and transient crack-propagations. Furthermore, the stress criterion, the COD criterion, the G-theory, and the J-integral are equivalent.