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Transient concentrated thermal/mechanical loading of the faces of a crack in a coupled-thermoelastic solid

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dc.contributor.author Georgiadis, HG en
dc.contributor.author Brock, LM en
dc.contributor.author Rigatos, AP en
dc.date.accessioned 2014-03-01T01:14:15Z
dc.date.available 2014-03-01T01:14:15Z
dc.date.issued 1998 en
dc.identifier.issn 0020-7683 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/12957
dc.relation.uri http://www.scopus.com/inward/record.url?eid=2-s2.0-0032054777&partnerID=40&md5=f0a9665dd84a67a2979190cc5b54da5c en
dc.subject.classification Mechanics en
dc.subject.other Cracks en
dc.subject.other Green's function en
dc.subject.other Laplace transforms en
dc.subject.other Strain en
dc.subject.other Stress intensity factors en
dc.subject.other Thermoelasticity en
dc.subject.other Coupled thermoelastic solid en
dc.subject.other Stress analysis en
dc.subject.other crack en
dc.subject.other loading en
dc.subject.other stress en
dc.subject.other wave propagation en
dc.title Transient concentrated thermal/mechanical loading of the faces of a crack in a coupled-thermoelastic solid en
heal.type journalArticle en
heal.language English en
heal.publicationDate 1998 en
heal.abstract A near-tip, transient, coupled thermoelastodynamic solution is presented for the plane stress/strain problem of a crack subjected to a concentrated thermal and/or mechanical loading, which is suddenly and symmetrically applied to the crack faces. Interest is focused on the stress field in the immediate vicinity of the crack during a small time-interval right after the application of loading and, therefore, the cracked body is considered of infinite extent and the crack itself of semi-infinite length. The loading consists of a pair of line heat sources or sinks (thermal loading) placed at the crack faces and/or a pair of equal, but opposite, line concentrated normal forces (mechanical loading) applied on the crack faces. These loadings may have an arbitrary time dependence (our analysis can deal with such cases), but here only the case of a step-function variation (the loadings act suddenly on the faces and are maintained there for all subsequent time) has been worked out. The thermoelastic wave propagation problem, which contains a characteristic length associated with the forcing function, is solved exactly in the time Laplace-transform domain by an analytic-function method. The inversion bf the time Laplace-transformed stress intensity factor is carried out through a numerical technique. The present solution provides the Green's function for thermoelastic cracked bodies under more general spatially non-uniform loadings. (C) 1998 Elsevier Science Ltd. en
heal.publisher PERGAMON-ELSEVIER SCIENCE LTD en
heal.journalName International Journal of Solids and Structures en
dc.identifier.isi ISI:000071883800007 en
dc.identifier.volume 35 en
dc.identifier.issue 11 en
dc.identifier.spage 1075 en
dc.identifier.epage 1097 en


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