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A simple probabilistic model for predicting crack growth behavior under random loading is pre-sented.In the model,the parameters c and m in the Paris-Erdogan Equation are taken as random variables,and their stochastic characteristic values are obtained through fatigue crack propagation tests on an offshorestructural steel under constant amplitude loading.Furthermore,by using the Monte Carlo simulation tech-nique,the fatigue crack propagation life to reach a given crack length is predicted.The tests are conducted toverify the applicability of the theoretical prediction of the fatigue crack propagation.
A simple probabilistic model for predicting crack growth behavior under random loading is pre- formed.In the model, the parameters c and m in the Paris-Erdogan Equation are taken as random variables, and their stochastic characteristic values are obtained through fatigue crack propagation tests on an offshorestructural steel under constant amplitude loading. Ferrthermore, by using the Monte Carlo simulation tech-nique, the fatigue crack propagation life to reach a given crack length is predicted. tests are conducted toverify the applicability of the theoretical prediction of the fatigue crack propagation.