{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1361699995587585664.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1111/j.1365-246x.1997.tb05647.x"}},{"identifier":{"@type":"URI","@value":"http://academic.oup.com/gji/article-pdf/130/2/269/2273875/130-2-269.pdf"}},{"identifier":{"@type":"NAID","@value":"30027001505"}}],"dc:title":[{"@value":"Non-hypersingular boundary integral equations for two-dimensional non-planar crack analysis"}],"description":[{"notation":[{"@value":"SUMMARY    We derive a set of non-hypersingular boundary integral equations, both elastodynamic and elastostatic, for the analysis of arbitrarily shaped 2-D anti-plane and in-plane cracks located in an infinite homogeneous isotropic medium, rendered in a unified nomenclature for all cases. The hypersingularities that appear in the usual formulations for the dynamic cases, existent both at the source point and at the wavefront, are removed by way of a regularization technique based on integration by parts. The equations for the in-plane cases are presented in terms of a local Cartesian coordinate system, one of the axes of which is always held locally tangential to the crack trace. The expressions for the elastic field at any point on the model plane are also given.        Our formulations are shown to yield accurate numerical results, as long as appropriate stabilization measures are taken in the numerical scheme. The numerical applicability of our method to non-planar crack problems is illustrated by simulations of dynamic growth of a hackly crack which has small off-plane side-branches. The results imply that the branching of a crack brings about a significant decrease in the crack-tip stress concentration level and consequently may play an essential role in the arrest of earthquake rupturing."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381699995587585664","@type":"Researcher","foaf:name":[{"@value":"Taku Tada"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699995587585665","@type":"Researcher","foaf:name":[{"@value":"Teruo Yamashita"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"0956540X"},{"@type":"EISSN","@value":"1365246X"},{"@type":"NCID","@value":"AA10717798"}],"prism:publicationName":[{"@value":"Geophysical Journal International"}],"dc:publisher":[{"@value":"Oxford University Press (OUP)"}],"prism:publicationDate":"1997-08","prism:volume":"130","prism:number":"2","prism:startingPage":"269","prism:endingPage":"282"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","url":[{"@id":"http://academic.oup.com/gji/article-pdf/130/2/269/2273875/130-2-269.pdf"}],"createdAt":"2007-04-03","modifiedAt":"2023-05-11","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050845760732705920","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Dynamic rupture simulation of the 2011 off the Pacific coast of Tohoku Earthquake: Multi-event generation within dozens of seconds"}]},{"@id":"https://cir.nii.ac.jp/crid/1050850092121518848","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Comparison of two time-marching schemes for dynamic rupture simulation with a 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