Reliability and Sensitivity Analysis of Laminate Using Different Methods

Wei Tao Zhao; Xiao Li; Feng Guo

doi:10.4028/www.scientific.net/AMR.945-949.1159

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 945-949Reliability and Sensitivity Analysis of Laminate...

Reliability and Sensitivity Analysis of Laminate Using Different Methods

Abstract:

Reliability of laminate structure is deeply influenced by uncertainties such as fiber properties, loads and design sizes. It is very difficult to evaluate the reliability and sensitivity of laminate structure because that laminate structure is anisotropic and the limit state function (LSF) is a high nonlinear function. In this paper, reliability and sensitivity are evaluated by using first order reliability method (FORM), response surface method (RSM) and Monte Carlo simulation (MCS). The study aims to find a numerical method to evaluate the reliability and sensitivity of laminate structures efficiently and accurately. An example of laminate with a large number of variables is analyzed. The results obtained by using different methods are compared in terms of efficiency and accuracy. It is shown that FORM is not accuracy, and RSM has a very good accuracy and efficient in terms of reliability, but the accuracy of sensitivity obtained by using RSM is not good enough.

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Periodical:

Advanced Materials Research (Volumes 945-949)

Pages:

1159-1162

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.945-949.1159

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Online since:

June 2014

Authors:

Wei Tao Zhao*, Xiao Li, Feng Guo

Keywords:

First-Order Reliability Method (FORM), Laminate, Monte Carlo Simulation, Reliability, Response Surface Method (RSM), Sensitivity

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