ENGINEERING TREATMENT METHOD FOR J~Q THEORY OF CRACKED STRUCTURE

Based on the solution of stress-strain field of cracked structures, the double-parameter J~Q theory of homogenious materials is discussed. The parameters in the theory are analyzed for engineering application, and the value of the parameter Q is calculated by the finite element method. As a result, the distribution of Q parameter is obtained. The effectiveness of the present method for assessing the safety of the cracked structure is discussed.