Structural reliability evaluation of a pressure vessel using response surface method

Abstract

High Reliability and operational safety are most important requirements of an aerospace product. Many aerospace standard guidelines are followed during design phases and after many iterations the product parameters are established. The conventional design practices do not take variability in to account. Probabilistic structural analysis, unlike traditional methods, provides a means to quantify the inherent risk of a design. In the present paper, Response Surface method is considered to evaluate Structural Reliability and Safety. A Response Surface model generated is validated with actual test data. This model can be used for Safety Index, Sensitivity analysis and Structural optimization with good confidence.

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