On the formation of expanding crack tip precipitates

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On the formation of expanding crack tip precipitates

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dc.contributor.author Reheman, Wureguli
dc.contributor.author Ståhle, Per
dc.contributor.author Fisk, Martin
dc.contributor.author Singh, Ram Niwas
dc.date.accessioned 2019-10-16T13:02:58Z
dc.date.available 2019-10-16T13:02:58Z
dc.date.issued 2019 en_US
dc.identifier.issn 0376-9429 en_US
dc.identifier.uri http://hdl.handle.net/2043/30236
dc.description.abstract The stress driven growth of an expanding precipitate at a crack tip is studied. The material is assumed to be linearly elastic, and the expansion is considered to be isotropic or transversely isotropic. The extent of the precipitate is expected to be small as compared with the crack length and distance to boundaries. The problem has only a single length scale given by the squared ratio of the stress intensity factor and a critical hydrostatic stress that initiates the growth of the precipitate. Therefore, the growth occurs under self-similar conditions. The equations on non-dimensional form show that the free parameters are expansion strain, degree of anisotropy and Poisson's ratio. It is found that the precipitate, once initiated, grows without remote load for expansion strains above a critical value. The anisotropy of the expansion strongly affects the shape of the precipitate but does not have a large effect on the crack tip shielding. en_US
dc.format.extent 14 en_US
dc.language.iso eng en_US
dc.publisher Springer en_US
dc.subject Growth of precipitates en_US
dc.subject Stress driven en_US
dc.subject Anisotropic expansion en_US
dc.subject Crack tip shielding en_US
dc.subject Zirconium hydride en_US
dc.subject.classification Technology en_US
dc.title On the formation of expanding crack tip precipitates en_US
dc.type Article, peer reviewed scientific en_US
dc.contributor.department Malmö University. Faculty of Technology and Society en_US
dc.contributor.department Malmö University. Materials Science and Applied Mathematics (MTM) en_US
dc.identifier.doi 10.1007/s10704-019-00360-2 en_US
dc.subject.srsc Research Subject Categories::TECHNOLOGY en_US
dc.relation.ispartofpublication International Journal of Fracture;1-2
dc.relation.ispartofpublicationvolume 217 en_US
dc.description.authorversion No en_US
dc.identifier.isiid 000474393100002
dcterms.identifier.OAurl https://link.springer.com/article/10.1007/s10704-019-00360-2 en_US
dc.format.ePage 48 en_US
dc.format.sPage 35 en_US
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