The use of finite element creep solutions to obtain J integrals for plane strain cracked members

Numerical values are obtained for the path independent $\text{J}$ integral and for crack opening displacement δ, for internally and externally cracked tension members under conditions of plane strain. These parameters have been obtained, for an $\text{n-}\text{power}$ creeping material, from stationary state solutions using the finite element method. Values of $\text{J}$ and δ are compared with available results and are shown to be in good agreement.