Crack propagation velocities in bi-phase plates under static and dynamic loading

Theocaris, PS; Milios, J

dc.contributor.author	Theocaris, PS	en
dc.contributor.author	Milios, J	en
dc.date.accessioned	2014-03-01T01:05:48Z
dc.date.available	2014-03-01T01:05:48Z
dc.date.issued	1980	en
dc.identifier.issn	0013-7944	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9006
dc.subject	Crack Propagation	en
dc.subject	Dynamic Loading	en
dc.subject.classification	Mechanics	en
dc.subject.other	FRACTURE MECHANICS	en
dc.title	Crack propagation velocities in bi-phase plates under static and dynamic loading	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/0013-7944(80)90089-2	en
heal.identifier.secondary	http://dx.doi.org/10.1016/0013-7944(80)90089-2	en
heal.language	English	en
heal.publicationDate	1980	en
heal.abstract	An investigation of the dependence of the crack-propagation velocity in complex bimaterial plates at different loading rates was undertaken. The specimens were fractured under the influence of both static and dynamic loadings and the crack-propagation velocities were detected by high speed photography with the optical method of caustics. The investigation was concentrated in detecting the influence that the different loading rates have on the fracture velocities in both phases of the plates and how this influence interferes-counteracting or superimposing-with the other factors that determine the crack propagation process in bi-material specimens. These factors are the effect of interface, the influence of the mechanical characteristics of each phase on the crack-propagation velocity etc. The results show that for constant and given material characteristics of the bi-phase plate the crack propagation velocity in the first (notched) phase tends to increase with increasing strain rates. The same is valid for the crack propagation velocity in the second phase, but only for the case when fracture occurs under the influence of a dynamic load. A significant discrepancy of the latter statement occurs, however, in the case of fracture under a continuously-increasing static load. In this case the crack-propagation velocity in the second phase reaches some remarkably high values, which are of the order of high strain-rate dynamic crack propagation velocities. In this way, the crack-arrest effect on the crack propagation velocity appears to be more significant in the case of a static loading than it is for the case of dynamic loading. © 1980.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Engineering Fracture Mechanics	en
dc.identifier.doi	10.1016/0013-7944(80)90089-2	en
dc.identifier.isi	ISI:A1980KE79200016	en
dc.identifier.volume	13	en
dc.identifier.issue	3	en
dc.identifier.spage	599	en
dc.identifier.epage	609	en