Crack-arrest at a bimaterial interface

Theocaris, PS; Milios, J

dc.contributor.author	Theocaris, PS	en
dc.contributor.author	Milios, J	en
dc.date.accessioned	2014-03-01T01:05:54Z
dc.date.available	2014-03-01T01:05:54Z
dc.date.issued	1981	en
dc.identifier.issn	0020-7683	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9065
dc.subject.classification	Mechanics	en
dc.subject.other	FRACTURE MECHANICS	en
dc.subject.other	PLATES	en
dc.subject.other	STRESSES - Analysis	en
dc.subject.other	MATERIALS TESTING	en
dc.title	Crack-arrest at a bimaterial interface	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/0020-7683(81)90077-9	en
heal.identifier.secondary	http://dx.doi.org/10.1016/0020-7683(81)90077-9	en
heal.language	English	en
heal.publicationDate	1981	en
heal.abstract	A study of the behavior of a transverse crack propagating at right angles through the interface of a bimaterial plate was undertaken by means of the method of high-speed photography along with the optical method of transmitted caustics. The investigation was mainly concentrated on the changes of the stress intensity factor at the tip of a moving crack when reaching the bimaterial interface. The investigation was also extended to duplex plates consisting of the same material in both phases of the duplex. The results have shown that the process of crack arrest at the interfaces of duplex specimens depends mainly on the material discontinuity that this interface region presents on the process of crack propagation and not on the abrupt change of the mechanical properties of the materials of the phases. Therefore, the dynamic problem of a crack reaching an interface can in no way be appropriately approached by means of only the results of the static analysis. By studying the dynamic process of crack arrest at an interface we have formulated a rule for the experimental determination of the stress intensity factor during the whole process of crack arrest. Finally and in relation with the above experimental evidence, the dependence between crack propagation and stress wave emission from the tip of a moving crack was also discussed. © 1981.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	International Journal of Solids and Structures	en
dc.identifier.doi	10.1016/0020-7683(81)90077-9	en
dc.identifier.isi	ISI:A1981KZ40300007	en
dc.identifier.volume	17	en
dc.identifier.issue	2	en
dc.identifier.spage	217	en
dc.identifier.epage	230	en