Forming-limit diagrams for Al 2124 and Al-Li 8090 through fracture mechanics and perturbation analysis

Andrianopoulos, NP; Dodd, B; Kourkoulis, SK; Limin, L

dc.contributor.author	Andrianopoulos, NP	en
dc.contributor.author	Dodd, B	en
dc.contributor.author	Kourkoulis, SK	en
dc.contributor.author	Limin, L	en
dc.date.accessioned	2014-03-01T01:11:58Z
dc.date.available	2014-03-01T01:11:58Z
dc.date.issued	1996	en
dc.identifier.issn	0924-0136	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11889
dc.subject	Alloys	en
dc.subject	Aluminium	en
dc.subject	Forming-limit diagrams	en
dc.subject	Fracture mechanics	en
dc.subject	Lithium	en
dc.subject	Perturbation analysis	en
dc.subject.classification	Engineering, Industrial	en
dc.subject.classification	Engineering, Manufacturing	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.other	Aluminum alloys	en
dc.subject.other	Continuum mechanics	en
dc.subject.other	Differential equations	en
dc.subject.other	Fracture mechanics	en
dc.subject.other	Perturbation techniques	en
dc.subject.other	Sheet metal	en
dc.subject.other	Stress analysis	en
dc.subject.other	Thin sheet	en
dc.subject.other	Metal forming	en
dc.title	Forming-limit diagrams for Al 2124 and Al-Li 8090 through fracture mechanics and perturbation analysis	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/0924-0136(95)02250-3	en
heal.identifier.secondary	http://dx.doi.org/10.1016/0924-0136(95)02250-3	en
heal.language	English	en
heal.publicationDate	1996	en
heal.abstract	A parallel comparative 'fracture mechanics and perturbation analysis' study for the construction of 'forming-limit diagrams' is presented in this work. The first is based on the notions of a recently introduced generalization of the T-criterion of fracture for the case of uncracked specimens. According to this generalization the failure of a material is described by a set of two material constants, i.e. its maximum ability to absorb dilatational and/or distortional strain energy. On the other hand the perturbation analysis is based on the introduction of a disturbance added to the homogeneous solution satisfying the set of governing differential equations of the problem. Both approaches are applied for the case of two conventional alloys, i.e. Al 2124 and Al-Li 8090, and their predictions are then compared with each other and also with the experimental results obtained from a series of in-plane and out-of-plane metal-forming processes.	en
heal.publisher	ELSEVIER SCIENCE SA LAUSANNE	en
heal.journalName	Journal of Materials Processing Technology	en
dc.identifier.doi	10.1016/0924-0136(95)02250-3	en
dc.identifier.isi	ISI:A1996WA55400039	en
dc.identifier.volume	62	en
dc.identifier.issue	1-3	en
dc.identifier.spage	275	en
dc.identifier.epage	282	en