Publicação
Hybrid evolutionary algorithm for global structural reliability assessment
| Resumo: | Composite laminate structures are prone to probabilistic catastrophic failure due to uncertainty in material and strength properties. The Reliability Index Approach (RIA) estimates the failure probability as a function of the reliability index and is formulated as a minimization problem. For highly dimensional problems and discontinuous implicit structural response functionals, gradient-based optimization methods suffer from premature local convergence, or even divergence. A new hybrid evolutionary algorithm is developed, to achieve global convergence of the RIA problem with practical efficiency. |
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| Autores principais: | Gonçalo das Neves Carneiro |
| Outros Autores: | Carlos Alberto Conceição António |
| Assunto: | Engenharia, Matemática, Ciências da engenharia e tecnologias, Matemática Engineering, Mathematics, Engineering and technology, Mathematics |
| Ano: | 2019 |
| País: | Portugal |
| Tipo de documento: | livro |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Universidade do Porto |
| Idioma: | inglês |
| Origem: | Repositório Aberto da Universidade do Porto |
| Resumo: | Composite laminate structures are prone to probabilistic catastrophic failure due to uncertainty in material and strength properties. The Reliability Index Approach (RIA) estimates the failure probability as a function of the reliability index and is formulated as a minimization problem. For highly dimensional problems and discontinuous implicit structural response functionals, gradient-based optimization methods suffer from premature local convergence, or even divergence. A new hybrid evolutionary algorithm is developed, to achieve global convergence of the RIA problem with practical efficiency. |
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