The T-criterion for engineering materials based on strength anisotropy

Theocaris, PS; Philippidis, TP

dc.contributor.author	Theocaris, PS	en
dc.contributor.author	Philippidis, TP	en
dc.date.accessioned	2014-03-01T01:07:19Z
dc.date.available	2014-03-01T01:07:19Z
dc.date.issued	1988	en
dc.identifier.issn	00015970	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9925
dc.subject	Critical Value	en
dc.subject	Failure Criterion	en
dc.subject	Theoretical Analysis	en
dc.subject	Strain Energy Density	en
dc.subject.other	Materials Science	en
dc.subject.other	Mechanics	en
dc.subject.other	Failure Criterion	en
dc.subject.other	Strength Anisotropy	en
dc.subject.other	Yield Limits	en
dc.subject.other	Fracture Mechanics	en
dc.title	The T-criterion for engineering materials based on strength anisotropy	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/BF01174634	en
heal.identifier.secondary	http://dx.doi.org/10.1007/BF01174634	en
heal.publicationDate	1988	en
heal.abstract	In most engineering materials the yield limits in tension and compression are in general different. Their ratio, R=σ0 C/σ0 T, characterizing the strength anisotropy of the material, was found to influence significantly the modes of both plane stress and plane strain fractures. The theoretical analysis presented in this paper introduced the necessary modifications of the T-criterion of fracture in order to cover the effect of the strength anisotropy, called the strength-differential effect (SDE). According to the statement of the proposed fracture criterion, the maximum value of the ratio of strain energy density components, TR=TV/TD, when calculated along the elastic-plastic boundary around the tip of a crack indicates the angle of initial crack path. Crack onset is characterized by a critical value of the SED. For the determination of the elastic-plastic boundary the most general form of a failure criterion, that is the paraboloid failure condition was used. © 1988 Springer-Verlag.	en
heal.publisher	Springer-Verlag	en
heal.journalName	Acta Mechanica	en
dc.identifier.doi	10.1007/BF01174634	en
dc.identifier.volume	75	en
dc.identifier.issue	1-4	en
dc.identifier.spage	175	en
dc.identifier.epage	190	en