Comparison of Stochastic Response Surface Method and Response Surface Method for Structure Reliability Analysis

The Response Surface Method (RSM) is not efficient to solve reliability analysis of complex and computationally high-demanding models. The Stochastic Response Surface Method (SRSM) was proposed recently. This paper adds some mathematics foundation for the SRSM, and compares the SRSM and RSM. The two approaches are applied to a nonlinear numerical example and a statically indeterminate beam problem respectively. The results show that the SRSM can be used for efficient, accurate estimate reliability.