Metalforming limit diagrams according to the T-criterion

Andrianopoulos, NP

dc.contributor.author	Andrianopoulos, NP	en
dc.date.accessioned	2014-03-01T01:09:27Z
dc.date.available	2014-03-01T01:09:27Z
dc.date.issued	1993	en
dc.identifier.issn	0924-0136	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10994
dc.subject.classification	Engineering, Industrial	en
dc.subject.classification	Engineering, Manufacturing	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.other	Crack propagation	en
dc.subject.other	Failure analysis	en
dc.subject.other	Strain	en
dc.subject.other	Metal forming limit diagrams	en
dc.subject.other	Plastic work	en
dc.subject.other	Strain energy density	en
dc.subject.other	T-criterion	en
dc.subject.other	Yielding	en
dc.subject.other	Metal forming	en
dc.title	Metalforming limit diagrams according to the T-criterion	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/0924-0136(93)90019-3	en
heal.identifier.secondary	http://dx.doi.org/10.1016/0924-0136(93)90019-3	en
heal.language	English	en
heal.publicationDate	1993	en
heal.abstract	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
heal.publisher	ELSEVIER SCIENCE SA LAUSANNE	en
heal.journalName	Journal of Materials Processing Tech.	en
dc.identifier.doi	10.1016/0924-0136(93)90019-3	en
dc.identifier.isi	ISI:A1993MD15700017	en
dc.identifier.volume	39	en
dc.identifier.issue	1-2	en
dc.identifier.spage	213	en
dc.identifier.epage	226	en