Efficient structural computations with parameters uncertainty for composite applications

被引：19

作者：

Carrere, N. ^{[1
]}

Rollet, Y. ^{[1
]}

Leroy, F. -H. ^{[1
]}

Maire, J. -F. ^{[1
]}

机构：

[1] ONERA DMSE LCME, F-92322 Chatillon, France

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2009年 / 69卷 / 09期

关键词：

Polymer-matrix composites (PMCs); Mechanical properties; Probabilistic methods; Computational mechanics; FINITE-ELEMENT METHOD; DYNAMICS; SYSTEMS; DESIGNS;

D O I：

10.1016/j.compscitech.2008.09.035

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The aim of this paper is to propose a methodology in order to take into account the influence of uncertain data in structural calculations. To attain this goal, an approximation of the responses as a function of the uncertain data response called surface method (RSM) is proposed. In order to decrease the number of identification points necessary for the RSM, a progressive strategy is proposed. Error indicators are also used in order to increase the confidence. This strategy is applied to a laminate plate subjected to bending tests. The results are compared to Monte-Carlo simulations (considered as a reference). The method proposed in the present work permits to estimate correctly the whole response and is very simple to use (pre- and post-processing). This method is applied to asses the robustness of the point-stress method used to predict the rupture of perforated plates. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1328 / 1333

页数：6

共 29 条

[21] Construction of response surfaces. based on progressive-lattice-sampling experimental designs with application to uncertainty propagation [J].