裂纹扩展下J积分及施加撕裂模量的理论推导

Theoretical Inference of J-Integral and Applied Tearing Modulus in the Presence of Crack Growth

Ｊ积分和施加撕裂模量是断裂力学中两个很重要的参量。本文根据Ｐａｒｉｓ的撕裂模量理论推导了裂纹扩展下Ｊ积分和施加撕裂模量的计算公式。

J-integral and applied tearing modulus are two very important parameters infracturing mechanics．Based on Paris' tearing modulus theories,the formulae of J-integraland applied modulus are inferred in this paper