Mechanisms of stable crack growth in ductile polycarbonate

Theocaris, PS; Kytopoulos, V

dc.contributor.author	Theocaris, PS	en
dc.contributor.author	Kytopoulos, V	en
dc.date.accessioned	2014-03-01T01:07:31Z
dc.date.available	2014-03-01T01:07:31Z
dc.date.issued	1989	en
dc.identifier.issn	00222461	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10045
dc.subject	Crack Growth	en
dc.subject	Crack Propagation	en
dc.subject	Critical Loads	en
dc.subject	Crack Tip Opening Angle	en
dc.subject.other	Stresses	en
dc.subject.other	Crack Tip Opening Angle	en
dc.subject.other	Stable Crack Growth	en
dc.subject.other	Polycarbonates	en
dc.title	Mechanisms of stable crack growth in ductile polycarbonate	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/BF01174497	en
heal.identifier.secondary	http://dx.doi.org/10.1007/BF01174497	en
heal.publicationDate	1989	en
heal.abstract	An extensive study of the phenomena appearing during crack propagation in ductile polycarbonate during the phase of stable crack growth (SCG) was undertaken. It has been shown that this phase starts at a critical loading step where a blunted crack was established and a damaged ligament in front of the crack tip developed and stabilized. This phase may be divided into two successive steps. The first is characterized by the step by step advancement of the blunted crack by exhausting respective parts of the damaged ligament so that the overall length of crack and ligament remains stationary. In this step the crack tip opening angle is increasing and attains its final value of the order of 55 degrees. This progressive crack growth, at the expense of the damaged ligament, is replaced by the proper steady crack growth where the crack advances steadily under almost constant external load and under constant CTOA up to a limit where catastrophic fracture occurs. The influence of the in-plane and transverse constraint factors was studied and important results concerning the mechanisms of fracture under predominating plane-stress or plane-strain conditions were established. © 1989 Chapman and Hall Ltd.	en
heal.publisher	Kluwer Academic Publishers	en
heal.journalName	Journal of Materials Science	en
dc.identifier.doi	10.1007/BF01174497	en
dc.identifier.volume	24	en
dc.identifier.issue	7	en
dc.identifier.spage	2358	en
dc.identifier.epage	2368	en