Fracture behavior of cracks in ductile plates under monotonic mixed-mode loading

Theocaris, PS; Kytopoulos, V

dc.contributor.author	Theocaris, PS	en
dc.contributor.author	Kytopoulos, V	en
dc.date.accessioned	2014-03-01T01:08:22Z
dc.date.available	2014-03-01T01:08:22Z
dc.date.issued	1991	en
dc.identifier.issn	0376-9429	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10442
dc.subject	Crack Initiation	en
dc.subject	Crack Propagation	en
dc.subject	Ductile Fracture	en
dc.subject	Experimental Study	en
dc.subject	Mixed Mode	en
dc.subject	Crack Tip Opening Angle	en
dc.subject.classification	Mechanics	en
dc.subject.other	Fracture Mechanics	en
dc.subject.other	Materials Testing - Fracture	en
dc.subject.other	Microscopic Examination - Scanning Electron Microscopy	en
dc.subject.other	Crack Initiation	en
dc.subject.other	Crack Tips	en
dc.subject.other	Ductile Fracture	en
dc.subject.other	Mixed Mode Loading	en
dc.subject.other	Plates	en
dc.title	Fracture behavior of cracks in ductile plates under monotonic mixed-mode loading	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/BF00037038	en
heal.identifier.secondary	http://dx.doi.org/10.1007/BF00037038	en
heal.language	English	en
heal.publicationDate	1991	en
heal.abstract	An experimental study of the early stages of ductile fracture was undertaken by using scanning electromicroscopy (SEM). The variation of several parameters influencing this type of fracture was introduced during the study of the preliminary blunting phase followed by the creation of the damaged ligament in front of the crack which resulted in the initiation of the slow propagation phase. This was achieved by changing the angle of obliqueness, α, of the edge cracks made in thin or thick plates of polycarbonate which exemplified cases where predominantly plane stress or plane strain conditions prevailed. The change of the angle α influenced drastically the value of the mixed-mode factor μ = K11/K1. The parameters studied were the crack-tip opening angle (CTOA), the damaged ligament in front of the crack face, the direction and orientation of the subsequent crack initiation and propagation and finally the variation of crack propagation and velocity at the early stage of slow crack propagation. Important results were derived from this experimental study which clarified various aspects of ductile fracture during the initiation of a new step of propagation of the crack. © 1991 Kluwer Academic Publishers.	en
heal.publisher	Kluwer Academic Publishers	en
heal.journalName	International Journal of Fracture	en
dc.identifier.doi	10.1007/BF00037038	en
dc.identifier.isi	ISI:A1991EV07600003	en
dc.identifier.volume	47	en
dc.identifier.issue	1	en
dc.identifier.spage	39	en
dc.identifier.epage	52	en