Crack-tip constraint and j-controllings stable growth of crack in plane stress case

The finite element analyses are performed to model quasi-static crack growth under mode I plane stress in a compact tension specimen and a centre-cracked plain. It is found that the triaxial constraint and stress-field defined by HRR solution in crack-tip regions for a stationary crack have been better met by those presented in the propagating crack-tip for two different thin specimens, namely, J-dominance is continuously valid. The J-resistance curves measured experimentally from the two specimen geometries coincide with each other and agree well with those calculated by FEM simulations.