Utilize este identificador para referenciar este registo:
https://hdl.handle.net/10316/115132
Título: | Sensitivity Analysis of the Square Cup Forming Process Using PAWN and Sobol Indices | Autor: | Parreira, Tomás G. Rodrigues, Diogo C. Oliveira, Marta C. Sakharova, Nataliya A. Prates, Pedro Pereira, André F. G. |
Palavras-chave: | PAWN indices; sensitivity analysis; sobol indices; square cup | Data: | 2024 | Editora: | MDPI | Projeto: | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID/EMS/00285/2020/PT/Centre for Mechanical Engineering UIDB/00481/2020 UIDP/00481/2020 CENTRO-01-0145-FEDER-022083 info:eu-repo/grantAgreement/FCT/3599-PPCDT/2022.02370.PTDC/PT LA/P/0112/2020 |
Título da revista, periódico, livro ou evento: | Metals | Volume: | 14 | Número: | 4 | Resumo: | This study investigates the sensitivity of the square cup forming process. It analyses how the uncertainties in the material properties, friction and process conditions affect the results of the square cup, such as equivalent plastic strain, geometry change, thickness reduction, punch force and springback. The cup flange and the die curvature region are identified as highly affected areas, while the cup bottom is least affected by the uncertainties. Two sensitivity analysis techniques, PAWN and Sobol indices, are compared. In particular, the study shows that PAWN indices require a significantly smaller number of simulations than Sobol indices, making them a more efficient choice for sensitivity analysis. While both PAWN and Sobol indices generally give comparable results, discrepancies arise in the analysis of springback, where PAWN indices show superior accuracy, particularly when dealing with multimodal distributions. This observation highlights the importance of selecting the appropriate sensitivity analysis method based on the nature of the data being analysed. These results provide insights for optimizing stamping processes to reduce production time and costs. | URI: | https://hdl.handle.net/10316/115132 | ISSN: | 2075-4701 | DOI: | 10.3390/met14040432 | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Eng.Mecânica - Artigos em Revistas Internacionais I&D CEMMPRE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
metals-14-00432 (2).pdf | 8.98 MB | Adobe PDF | Ver/Abrir |
Visualizações de página
123
Visto em 16/out/2024
Downloads
26
Visto em 16/out/2024
Google ScholarTM
Verificar
Altmetric
Altmetric
Este registo está protegido por Licença Creative Commons