Exact methods for calculating J-Integral and T-modulus values for stable crack growth

Since its introduction ten years ago, the J-Integral has been found to be an increasingly useful parameter in fracture mechanics. A major contribution to the development of the J-Integral concept was the observation that J could be used to characterize fracture toughness even in situations where plasticity was significant and linear elastic fracture mechanics was thus inadequate. After this finding, interest naturally increased and continues to the present day in developing procedures for reliably determining J from experimental measurements