A COPULA-FUNCTION-BASED MODEL FOR THE RELIABILITY ANALYSIS OF COMPOSITE STRUCTURES

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2020

Autores

Hoffbauer, LN (Autor) Outra; Carlos Alberto Conceição António (Autor) FEUP

Ata de Conferência Internacional

Título: IRF2020-7th International Conference Integrity-Reliability-Failure

Páginas: 857-858

Indexação

ISI Web of Knowledge - 0 Citações

Outras Informações

ID Authenticus: P-00Z-APK

Abstract (EN): The failure probability (FP) function, aiming to decouple the nested-loop reliability based design optimization (RBDO) into a single-loop optimization problem, is proposed. The FP function is defined as a failure probability function with respect to the design variables of the random inputs, which can be used to decouple the nested-loop reliability-based design optimization solution into a single-loop optimization problem. In the proposed approach, using the Bayes theorem and copula, a FP function estimation is established for laminated composite structures. The FP function is defined as a product of the conditional copula density and the augmented failure probability, in which the vine copula is employed to decompose the multidimensional conditional copula density into several bivariate copula density functions, and they can be completed by the existing PDF estimation methods.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 2