Crack path predictions for temperature sensitive materials

Andrianopoulos, NP; Kourkoulis, SK

dc.contributor.author	Andrianopoulos, NP	en
dc.contributor.author	Kourkoulis, SK	en
dc.date.accessioned	2014-03-01T01:14:29Z
dc.date.available	2014-03-01T01:14:29Z
dc.date.issued	1999	en
dc.identifier.issn	0376-9429	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13101
dc.subject	Crack propagation	en
dc.subject	Failure criteria	en
dc.subject	Mechanical properties	en
dc.subject	Temperature fields	en
dc.subject	Thermal properties	en
dc.subject.classification	Mechanics	en
dc.subject.other	Failure (mechanical)	en
dc.subject.other	Mathematical models	en
dc.subject.other	Strength of materials	en
dc.subject.other	Temperature	en
dc.subject.other	Thermodynamic properties	en
dc.subject.other	Crack path prediction	en
dc.subject.other	Failure criteria	en
dc.subject.other	Non steady heat source model	en
dc.subject.other	Temperature field	en
dc.subject.other	Temperature sensitive materials	en
dc.subject.other	Crack propagation	en
dc.title	Crack path predictions for temperature sensitive materials	en
heal.type	journalArticle	en
heal.identifier.primary	10.1023/A:1018667131496	en
heal.identifier.secondary	http://dx.doi.org/10.1023/A:1018667131496	en
heal.language	English	en
heal.publicationDate	1999	en
heal.abstract	The propagation of a crack into a material whose mechanical and thermal properties depend on the temperature field developed around the running crack tip is studied in the present work. This is achieved by employing the Non Steady Heat Source model, for the calculation of the temperature field surrounding the crack tip region, the dynamic version of the T-criterion of failure and the experimental data concerning the variation of thermal and mechanical properties of the material with temperature. It is proved that in the immediate vicinity of the crack tip the material properties show steep gradient. Thus, if a failure criterion is to be applied for the prediction of the path of an already traveling crack, then the current values of the mechanical properties should be taken into account. Otherwise, fallacious conclusions may be drawn. The results obtained are in satisfactory agreement with the limited experimental evidence available from literature concerning both the intensity of the temperature field developed and, also, the direction of the crack propagation.	en
heal.publisher	KLUWER ACADEMIC PUBL	en
heal.journalName	International Journal of Fracture	en
dc.identifier.doi	10.1023/A:1018667131496	en
dc.identifier.isi	ISI:000083714600009	en
dc.identifier.volume	98	en
dc.identifier.issue	3-4	en
dc.identifier.spage	209	en
dc.identifier.epage	223	en