Assessment of different ductile damage models and experimental validation

• Tipo: Artigo em Revista Científica Internacional
• Data: 2018

Autores

J. César de Sá (Autor) FEUP; Rui Amaral (Autor) FEUP; Pedro Teixeira (Autor) Outra; Abel D. Santos (Autor) FEUP

Revista

Título: International Journal of Material Forming

Vol. 11

Páginas: 435-444

ISSN: 1960-6206

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 2 Citações

COMPENDEX

Outras Informações

ID Authenticus: P-00N-8X9

DOI: 10.1007/s12289-017-1381-4

Abstract (EN): The tough fuel economy and emissions standards facing automotive industry creates the need for lightweight construction and the use of new generation of materials. However, the use of non-conventional materials leads to difficulties in the prediction of material behaviour during sheet metal forming processes, including damage and formability limits, thus challenging the numerical simulation. This paper seeks to contribute in the prediction of fracture on sheet metal alloys. Three constitutive damage models are used, GTN, Johnson Cook and Lemaitre, to simulate, as realistically as possible, the mechanical behaviour of the sheet metal material. The corresponding parameters of damage models are identified using an inverse analysis procedure, based on experimental test data. Finally, to validate and verify the applicability of the studied damage models to predict fracture, experiments are compared with FE simulations.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10