Go to:
Logótipo
Comuta visibilidade da coluna esquerda
Você está em: Start > Publications > View > Gradient damage models in metal forming problems
Publication

Publications

Gradient damage models in metal forming problems

Title
Gradient damage models in metal forming problems
Type
Article in International Conference Proceedings Book
Year
2004
Authors
José Manuel A. César de Sá
(Author)
FEUP
View Personal Page You do not have permissions to view the institutional email. Search for Participant Publications View Authenticus page View ORCID page
Pedro Miguel A. Areias
(Author)
FEUP
View Personal Page You do not have permissions to view the institutional email. Search for Participant Publications View Authenticus page Without ORCID
Cai Zheng
(Author)
FEUP
View Personal Page You do not have permissions to view the institutional email. Search for Participant Publications Without AUTHENTICUS Without ORCID
Conference proceedings International
Scientific classification
FOS: Engineering and technology > Mechanical engineering
CORDIS: Technological sciences > Engineering > Mechanical engineering
Other information
Resumo (PT):
Abstract (EN): Reliable metal forming predictions require that fracture indication be available both in processes where it should be avoided and in processes in which fracture is a part of the process itself as in sheet blanking or metal cutting. The present proposal circumvents the necessity of the so-called "fracture indicators" or fracture criteria by representing fracture through the material model exclusively. The frequent objections to this otherwise attractive are mainly related to the observed defect of mesh dependency. To attenuate this dependency an implicit gradient damage model is used. Therefore a non-local damage field is introduced, which can be related to a local damage field, by means of a Helmholtz type differential equation. The damage evolution law is based on the improved Lemaitre damage model that treats differently the compressive and tensile response, which is particularly adequate for situations involving complex strain paths.
Language: English
Type (Professor's evaluation): Scientific
No. of pages: 6
Documents
We could not find any documents associated to the publication.
Related Publications

Of the same scientific areas

The influence of migrated materials on Tool wear ratio (2002)
Thesis
José Duarte Ribeiro Marafona; Sem Nome; Catherine Wykes
Análise Dinâmica de Estruturas de Veículos (1985)
Thesis
José António dos Santos Almacinha; Lúcia Maria Dinis

See all (502)

Recommend this page Top
Copyright 1996-2025 © Faculdade de Direito da Universidade do Porto  I Terms and Conditions  I Acessibility  I Index A-Z
Page created on: 2025-07-24 at 02:57:45 | Privacy Policy | Personal Data Protection Policy | Whistleblowing