{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/22719"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/22719","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Analysis of interface and subinterface cracks with crack-face contact and interface shear yield zones","abstract":"Plane strain problems for an interface crack, with two interface shear yield zones and one crack-face contact zone, and for a crack parallel to an interface between dissimilar materials, with crack-face contact zone near one of the crack tips, are studied. These interface crack and subinterface crack problems are formulated as systems of nonlinear Cauchy-type singular integral equations which are solved numerically using Erdogan and Gupta' s (1972) method. The physically pathological features of interpenetration of the crack faces and oscillation of the near tip fields are eliminated in the solutions by accounting for plastic deformation of the interlayer and contact of the crack faces. The solutions predict that for an interface crack or a subinterface crack in a combined normal and shear stress field, the crack may extend even when the normal stress is compressive. The behavior of a subinterface crack depends on both Dundurs parameters $\\alpha$ and $\\beta$ rather than only on $\\beta$ for an interface crack. The behavior of the cracks can be determined from the interaction of the singularities at the crack tips caused by the normal and shear stress fields.","abstract_html":"Plane strain problems for an interface crack, with two interface shear yield zones and one crack-face contact zone, and for a crack parallel to an interface between dissimilar materials, with crack-face contact zone near one of the crack tips, are studied. These interface crack and subinterface crack problems are formulated as systems of nonlinear Cauchy-type singular integral equations which are solved numerically using Erdogan and Gupta&#x27; s (1972) method. The physically pathological features of interpenetration of the crack faces and oscillation of the near tip fields are eliminated in the solutions by accounting for plastic deformation of the interlayer and contact of the crack faces. The solutions predict that for an interface crack or a subinterface crack in a combined normal and shear stress field, the crack may extend even when the normal stress is compressive. The behavior of a subinterface crack depends on both Dundurs parameters <span class=\"etd-inline-math\">&alpha;</span> and <span class=\"etd-inline-math\">&beta;</span> rather than only on <span class=\"etd-inline-math\">&beta;</span> for an interface crack. The behavior of the cracks can be determined from the interaction of the singularities at the crack tips caused by the normal and shear stress fields.","abstract_has_math":true,"creators":["Yang, Mingfa"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Engineering, Mechanical","degree_department":null,"school":null,"contributors":["Kim, Kyung-Suk"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-05-07T13:49:13Z","date_published":"2011-05-07T13:49:13Z","updated_at":"2026-07-22T22:25:20Z","subjects":["Engineering, Mechanical"],"languages":["eng"],"rights":["Copyright 1991 Yang, Mingfa"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9136771","(UMI)AAI9136771"],"render_values":[{"text":"AAI9136771","href":null,"code":true},{"text":"(UMI)AAI9136771","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/22719","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Kim, Kyung-Suk"]},{"key":"dc:creator","label":"Author","values":["Yang, Mingfa"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-05-07T13:49:13Z","10000-01-01","1991"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Engineering, Mechanical"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Engineering, Mechanical"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 1991 Yang, Mingfa"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9136771","(UMI)AAI9136771","http://hdl.handle.net/2142/22719"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Plane strain problems for an interface crack, with two interface shear yield zones and one crack-face contact zone, and for a crack parallel to an interface between dissimilar materials, with crack-face contact zone near one of the crack tips, are studied. These interface crack and subinterface crack problems are formulated as systems of nonlinear Cauchy-type singular integral equations which are solved numerically using Erdogan and Gupta' s (1972) method. The physically pathological features of interpenetration of the crack faces and oscillation of the near tip fields are eliminated in the solutions by accounting for plastic deformation of the interlayer and contact of the crack faces. The solutions predict that for an interface crack or a subinterface crack in a combined normal and shear stress field, the crack may extend even when the normal stress is compressive. The behavior of a subinterface crack depends on both Dundurs parameters $\\alpha$ and $\\beta$ rather than only on $\\beta$ for an interface crack. The behavior of the cracks can be determined from the interaction of the singularities at the crack tips caused by the normal and shear stress fields.","Made available in DSpace on 2011-05-07T13:49:13Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9136771.pdf: 3761033 bytes, checksum: f6061db3fa376d04341150361682cd16 (MD5) Previous issue date: 1991","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:59:32Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:28:05-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission","ETDs are only available to UIUC Users without author permission","U of I Only"]},{"key":"dc:title","label":"Title","values":["Analysis of interface and subinterface cracks with crack-face contact and interface shear yield zones"]}]}],"canonical_facts":{"dc:contributor":["Kim, Kyung-Suk"],"dc:creator":["Yang, Mingfa"],"dc:date":["2011-05-07T13:49:13Z","10000-01-01","1991"],"dc:description":["Plane strain problems for an interface crack, with two interface shear yield zones and one crack-face contact zone, and for a crack parallel to an interface between dissimilar materials, with crack-face contact zone near one of the crack tips, are studied. These interface crack and subinterface crack problems are formulated as systems of nonlinear Cauchy-type singular integral equations which are solved numerically using Erdogan and Gupta' s (1972) method. The physically pathological features of interpenetration of the crack faces and oscillation of the near tip fields are eliminated in the solutions by accounting for plastic deformation of the interlayer and contact of the crack faces. The solutions predict that for an interface crack or a subinterface crack in a combined normal and shear stress field, the crack may extend even when the normal stress is compressive. The behavior of a subinterface crack depends on both Dundurs parameters $\\alpha$ and $\\beta$ rather than only on $\\beta$ for an interface crack. The behavior of the cracks can be determined from the interaction of the singularities at the crack tips caused by the normal and shear stress fields.","Made available in DSpace on 2011-05-07T13:49:13Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9136771.pdf: 3761033 bytes, checksum: f6061db3fa376d04341150361682cd16 (MD5) Previous issue date: 1991","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:59:32Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:28:05-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission","ETDs are only available to UIUC Users without author permission","U of I Only"],"dc:identifier":["AAI9136771","(UMI)AAI9136771","http://hdl.handle.net/2142/22719"],"dc:language":["eng"],"dc:rights":["Copyright 1991 Yang, Mingfa"],"dc:subject":["Engineering, Mechanical"],"dc:title":["Analysis of interface and subinterface cracks with crack-face contact and interface shear yield zones"],"dc:type":["text"],"thesis:degree_discipline":["Engineering, Mechanical"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:20Z"}