Reliability Analysis Based on Hybrid Response Surface Method for Laminated Composites

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原文链接

NETL

外文摘要：The advanced fiber-reinforced laminated composites are widely used in a variety of engineering applications such as aerospace， marine， mechanics， and civil engineering for weight savings， but it has more inherent uncertainties than metals。 Therefore， the reliability-based probabilistic design that can be considered structural uncertainties quantitatively is required。 Furthermore， an approximate method such as response surface is necessary to satisfy accuracy and computational efficiency because reliability analysis is required the high computational cost for the large structure that contains many random variables。 In this paper， the hybrid response surface method(classified into method 1 and 2) is proposed and examined to improve the efficiency during the analysis procedure and the accuracy of result To verify the performance of hybrid response surface method， we conduct the reliability analysis for wingshaped laminated composite plate using COMSOL-MATLAB interface。 The result of the calculation using proposed method is more similar to exact solution than general response surface method。 The method 1 is relatively excellent accuracy in wide region of limit state equation， and the method 2 is more accurate than the method 1 in the estimation of the MPP coordinates。

外文关键词：

hybrid response surface methodreliability analysislimit state equationmost probable pointprobability of failurecomposite laminated plate

作者：

Lee Seokje、Kim Ingul

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作者单位：

Graduate student, Department of Aerospace Engineering, Chungnam National University,Daejeon, Korea 305-764

Professor, Department of Aerospace Engineering,Chungnam National University, Daejeon, Korea 305-764

会议名称：

Asia-Pacific international symposium on aerospace technology;APISAT 2010

会议地点：

Xi'an(CN);Xi'an(CN)

会议母体文献：

The proceedings of 2010 Asia-Pacific international symposium on aerospace technology.;vol. 2.

页码：

p.744-747

出版时间：

2010