Structural Reliability via Response Surface
Problems of nonlinear stochastic mechanics (both static and dynamic) are governed by equations whose solution must generally be pursued in a numerical way. Stochasticity may lie in the nature of the excitation and/or in the nature of distributed system properties. The absence of analytical expressions and the presence of stochastic processes and random fields prevent one from using classical reliability methods. A general — purpose approach for assessing the reliability of a nonlinear mechanical system under stochastic conditions is presented in this paper. It combines the skeleton of classical reliability methods with the adoption of a response surface scheme.
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