Application of response surface method for reliability analysis of stiffened laminated plates

Nana Yang, Purnendu K. Das, Xiongliang Yao

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The practicability of structural reliability analysis methods for a specific limit state depends to a great extent on the complexities of the formulation of the limit-state function. Often the limit-state function is not available in the explicit form. One way to solve the problem is to approximate a limit-state surface in a numerical form by regression. Once the response surface has been obtained, the reliability analysis is made with the response surface as limit-state surface in place of the complicated limit-state surface of the model. An application methodology for structural reliability analysis of the composite structures based on the response surface method in conjunction with nonlinear finite-element analysis is demonstrated in this paper. With the fitted response surface obtained, further developments for defining partial safety factors for composite design purpose are now possible.

Original languageEnglish
Pages (from-to)653-659
Number of pages7
JournalShips and Offshore Structures
Volume10
Issue number6
Early online date8 Aug 2014
DOIs
Publication statusPublished - 2 Nov 2015

Keywords

  • finite-element method reliability
  • partial factors
  • response surface method
  • ultimate strength

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