New formula of experimental stress intensity factor evaluation by caustics

Papadopoulos, GA

dc.contributor.author	Papadopoulos, GA	en
dc.date.accessioned	2014-03-01T01:36:26Z
dc.date.available	2014-03-01T01:36:26Z
dc.date.issued	2011	en
dc.identifier.issn	0376-9429	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/21300
dc.subject	caustics	en
dc.subject	caustics area	en
dc.subject	cracks	en
dc.subject	stress intensity factors	en
dc.subject.classification	Mechanics	en
dc.subject.other	caustics	en
dc.subject.other	caustics area	en
dc.subject.other	Crack length	en
dc.subject.other	Experimental evaluation	en
dc.subject.other	Higher loads	en
dc.subject.other	Stress intensity	en
dc.subject.other	Stress intensity factor K	en
dc.subject.other	Cracks	en
dc.subject.other	Stress intensity factors	en
dc.title	New formula of experimental stress intensity factor evaluation by caustics	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s10704-011-9614-x	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s10704-011-9614-x	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	A study of the experimental evaluation of the stress intensity factor KI was undertaken by the method of caustics. A new formula of experimental calculation stress intensity factor was proposed depended to the area of the caustic. A series of experiments were performed in single edge-cracked specimens made of Lexan (PCBA). It was found that the values of the stress intensity factor KI, which were based on the diameters of the caustics, were varied with the load, the crack length and the caustic shape because the caustic becomes oval in higher loads or higher crack length. This means that the stress intensity values, which are calculated by the two diameters of the caustics (Dt, Dl ), are significantly differed. The accurate stress intensity factor KI can be experimentally evaluated by the area of the formed caustic. In the present work a new formula for the calculation of the stress intensity factor was established. © 2011 Springer Science+Business Media B.V.	en
heal.publisher	SPRINGER	en
heal.journalName	International Journal of Fracture	en
dc.identifier.doi	10.1007/s10704-011-9614-x	en
dc.identifier.isi	ISI:000297620900007	en
dc.identifier.volume	171	en
dc.identifier.issue	1	en
dc.identifier.spage	79	en
dc.identifier.epage	84	en