The stationary value of the third stress invariant as a local fracture parameter (Det.-criterion)

Papadopoulos, GA

dc.contributor.author	Papadopoulos, GA	en
dc.date.accessioned	2014-03-01T01:07:00Z
dc.date.available	2014-03-01T01:07:00Z
dc.date.issued	1987	en
dc.identifier.issn	0013-7944	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9741
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0023498310&partnerID=40&md5=6a75cac36940ae711e913110c30c2e68	en
dc.subject.classification	Mechanics	en
dc.subject.other	MATERIALS - Crack Propagation	en
dc.subject.other	STRESSES - Evaluation	en
dc.subject.other	ELASTIC-PLASTIC BOUNDARY	en
dc.subject.other	STRAIN-ENERGY DENSITY	en
dc.subject.other	THIRD STRESS INVARIANT	en
dc.subject.other	FRACTURE MECHANICS	en
dc.title	The stationary value of the third stress invariant as a local fracture parameter (Det.-criterion)	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1987	en
heal.abstract	In this paper the stationary value of the third stress invariant as a local fracture parameter is studied. The third stress invariant [Det(σij)] is calculated along a circle around the crack-tip. This circle, which defines the core-region around the crack-tip, is the initial curve of the caustics. This distribution of the Det(σij) presents a positive maximum. The crack propagates in the direction of the maximum value of the Det(σij) and the fracture will initiate when the Det(σij) on the core-region boundary reaches a critical maximum value which is a material property. This condition of initiation of the crack is proposed as Det.-criterion of fracture. © 1987.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Engineering Fracture Mechanics	en
dc.identifier.isi	ISI:A1987K116700003	en
dc.identifier.volume	27	en
dc.identifier.issue	6	en
dc.identifier.spage	643	en
dc.identifier.epage	652	en