Metalforming limit diagrams according to the T-criterion

 
see the original item page
in the repository's web site and access all digital files if the item*
share




1993 (EN)
Metalforming limit diagrams according to the T-criterion (EN)

Andrianopoulos, NP (EN)

N/A (EN)

A generalized form of the T-criterion of failure is applied in the case of metalforming processes to predict metalforming limit diagrams. According to this criterion an upper limit of permissible deformations in metalforming is set by either a critical value of the elastic strain energy density (T(V,0)) of volume changes, or a respective critical value of the strain energy density (T(D,0)) of shape changes, of the material. When T(V,0) is reached the material fails by unstable crack propagation, whilst it fails by general yielding when T(D,0) is reached. Consequently, the total failure locus consists of two curves, one of final failure by elastic fracture and another of final failure by general yielding. Experimental evidence from the existing literature shows good agreement with the present predictions. (EN)

journalArticle

Plastic work (EN)
Strain energy density (EN)
Metal forming (EN)
Metal forming limit diagrams (EN)
Yielding (EN)
Failure analysis (EN)
T-criterion (EN)
Crack propagation (EN)
Strain (EN)

Εθνικό Μετσόβιο Πολυτεχνείο (EL)
National Technical University of Athens (EN)

Journal of Materials Processing Tech. (EN)

1993


ELSEVIER SCIENCE SA LAUSANNE (EN)



*Institutions are responsible for keeping their URLs functional (digital file, item page in repository site)