Plastic stress intensity factors in out-of-plane shear by reflected caustics

Theocaris, PS; Philippidis, TP

dc.contributor.author	Theocaris, PS	en
dc.contributor.author	Philippidis, TP	en
dc.date.accessioned	2014-03-01T01:06:58Z
dc.date.available	2014-03-01T01:06:58Z
dc.date.issued	1987	en
dc.identifier.issn	0013-7944	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9700
dc.subject	Stress Intensity Factor	en
dc.subject.classification	Mechanics	en
dc.subject.other	LIGHT - Reflection	en
dc.subject.other	MATERIALS - Hardening	en
dc.subject.other	STRESSES - Strain	en
dc.subject.other	ELASTIC STRESS INTENSITY FACTOR	en
dc.subject.other	FRACTURE TOUGHNESS PARAMETER	en
dc.subject.other	PLASTIC STRESS-STRAIN FIELDS	en
dc.subject.other	REFLECTED CAUSTICS	en
dc.subject.other	PLATES	en
dc.title	Plastic stress intensity factors in out-of-plane shear by reflected caustics	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/0013-7944(87)90148-2	en
heal.identifier.secondary	http://dx.doi.org/10.1016/0013-7944(87)90148-2	en
heal.language	English	en
heal.publicationDate	1987	en
heal.abstract	The elastic KIII-stress intensity factor, characterizing the magnitude of the singularity occurring at the tip of a crack loaded in out-of-plane shear, was successfully determined by the experimental method of reflected caustics (P. S. Theocaris, Int. J. Mech. Sci. 23, 105-117 (1981)). For the determination of the elastic KIII it was assumed that the immediate vicinity of the crack tip was dominated by the elastic (- 1 2)-singular stress field. For a work-hardening elastic-plastic material, and for small scale yielding conditions occurring at the crack tip, the plastic stress and strain fields imply other shapes and dimensions for the reflected caustics. Although the region surrounding the plastic zone remains under the dominance of the elastic singular solution, a more proper characterization of the intensity of stress singularity occurring at the crack tip was introduced by the notion of the plastic SIF. In the present paper the determination of the plastic SIF by means of the method of reflected caustics for a cracked plate loaded in out-of-plane shear was given. In the theoretical analysis the elastic-plastic solution for work-hardening materials was used. For the experimental determination of the plastic SIF an improved optical arrangement for recording reflected caustics was used, especially useful for small scale yielding conditions. © 1987.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Engineering Fracture Mechanics	en
dc.identifier.doi	10.1016/0013-7944(87)90148-2	en
dc.identifier.isi	ISI:A1987J059400006	en
dc.identifier.volume	27	en
dc.identifier.issue	3	en
dc.identifier.spage	299	en
dc.identifier.epage	314	en