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This paper shows new developments on the modified J-integral, JM. General formulas are presented, and a physical interpretation is given in terms of energy differences. Also defined are the apparent stored energy, A, and a generalized pseudo crack driving force, Q. A general approach is presented so that for each particular material law used, the corresponding crack drive parameter is obtained.
materials, fracture mechanics, resistance curves, modified , J, plasticity, energy, crack growth, elastic-plastic fracture, nonlinear fracture mechanics
Associate professor, School of Mechanical,