An improved method for the evaluation of mode I dynamic stress intensity factors

Theocaris, PS; Lazopoulos, C

dc.contributor.author	Theocaris, PS	en
dc.contributor.author	Lazopoulos, C	en
dc.date.accessioned	2014-03-01T01:07:23Z
dc.date.available	2014-03-01T01:07:23Z
dc.date.issued	1989	en
dc.identifier.issn	0734-743X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9965
dc.subject	Stress Intensity Factor	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.classification	Mechanics	en
dc.subject.other	Dynamics	en
dc.subject.other	Stresses	en
dc.subject.other	Dynamic Theory of Caustics	en
dc.subject.other	Large Initial Curves (LIC)	en
dc.subject.other	Mode I Dynamic Stress Intensity Factors	en
dc.subject.other	Materials	en
dc.title	An improved method for the evaluation of mode I dynamic stress intensity factors	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/0734-743X(89)90022-5	en
heal.identifier.secondary	http://dx.doi.org/10.1016/0734-743X(89)90022-5	en
heal.language	English	en
heal.publicationDate	1989	en
heal.abstract	The dynamic stress intensity factor (SIF) for propagating cracks under constant velocity is evaluated by adapting a four-term expansion of the complex potential instead of the singular-term one. Then, the proposed approach is suitable for large initial curves (LIC), which may incorporate, besides the main singularity, other non-linear phenomena. Dynamic phenomena create always smaller caustics than their static counterparts, may correspond to brittle materials with smaller initial curves. Therefore, the use of this method results in an increase in accuracy by a better approximation derived from the four-term expansion of the stress function. The method provides good flexibility, suitable for dynamic problems and much higher accuracy than the one-term solution. © 1989.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	International Journal of Impact Engineering	en
dc.identifier.doi	10.1016/0734-743X(89)90022-5	en
dc.identifier.isi	ISI:A1989AZ40100005	en
dc.identifier.volume	8	en
dc.identifier.issue	4	en
dc.identifier.spage	331	en
dc.identifier.epage	340	en