{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/71814"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/71814","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"A Fatigue Life Prediction Method for Tensile-Shear Spot Welds","abstract":"An empirical Three Stage Initiation-Propagation (TSIP) model has been developed which predicts the fatigue resistance of tensile-shear spot welds under constant amplitude loading test. The TSIP model consists of Stage I--fatigue crack initiation and early growth, Stage II--through sheet thickness crack propagation, and Stage III--across sheet width crack propagation. The improvements of tensile-shear spot weld fatigue resistance through manipulation of geometry, residual stress and material property variables are discussed with the aid of the model. The TSIP model suggests that, in addition to the influence of geometry, residual stresses at the site of crack initiation greatly influence the fatigue resistance of tensile-shear spot welds. The TSIP model predicts the subtle role of material properties in determing the fatigue resistance of tensile-shear spot welds.","abstract_html":"An empirical Three Stage Initiation-Propagation (TSIP) model has been developed which predicts the fatigue resistance of tensile-shear spot welds under constant amplitude loading test. The TSIP model consists of Stage I--fatigue crack initiation and early growth, Stage II--through sheet thickness crack propagation, and Stage III--across sheet width crack propagation. The improvements of tensile-shear spot weld fatigue resistance through manipulation of geometry, residual stress and material property variables are discussed with the aid of the model. The TSIP model suggests that, in addition to the influence of geometry, residual stresses at the site of crack initiation greatly influence the fatigue resistance of tensile-shear spot welds. The TSIP model predicts the subtle role of material properties in determing the fatigue resistance of tensile-shear spot welds.","abstract_has_math":false,"creators":["Wang, Pei-Chung"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Metallurgical Engineering","degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2014,"date_issued":"2014-12-16T20:51:59Z","date_published":"2014-12-16T20:51:59Z","updated_at":"2026-07-22T22:26:05Z","subjects":["Engineering, Metallurgy"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(UMI)AAI8502336"],"render_values":[{"text":"(UMI)AAI8502336","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/71814","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Wang, Pei-Chung"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2014-12-16T20:51:59Z","10000-01-01","1984"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Metallurgical Engineering"]},{"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, Metallurgy"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/71814","(UMI)AAI8502336"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["An empirical Three Stage Initiation-Propagation (TSIP) model has been developed which predicts the fatigue resistance of tensile-shear spot welds under constant amplitude loading test. The TSIP model consists of Stage I--fatigue crack initiation and early growth, Stage II--through sheet thickness crack propagation, and Stage III--across sheet width crack propagation. The improvements of tensile-shear spot weld fatigue resistance through manipulation of geometry, residual stress and material property variables are discussed with the aid of the model. The TSIP model suggests that, in addition to the influence of geometry, residual stresses at the site of crack initiation greatly influence the fatigue resistance of tensile-shear spot welds. The TSIP model predicts the subtle role of material properties in determing the fatigue resistance of tensile-shear spot welds.","Tensile-shear spot welds of low carbon and HSLA steel sheet spot welds have been tested to determine the effect of change in nugget shape, preloading and coining post-weld treatments. The effect of these treatments on the fatigue resistance of spot welds was determined using constant amplitude and variable load histories. The experimental results were compared with predictions made using the TSIP model.","Made available in DSpace on 2014-12-16T20:51:59Z (GMT). No. of bitstreams: 1 8502336.pdf: 3115218 bytes, checksum: f447b48bbd9cae3bd52a98e53afc242f (MD5) Previous issue date: 1984","Embargo set by: Seth Robbins for item 71980 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","U of I Only","137 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1984."]},{"key":"dc:title","label":"Title","values":["A Fatigue Life Prediction Method for Tensile-Shear Spot Welds"]}]}],"canonical_facts":{"dc:creator":["Wang, Pei-Chung"],"dc:date":["2014-12-16T20:51:59Z","10000-01-01","1984"],"dc:description":["An empirical Three Stage Initiation-Propagation (TSIP) model has been developed which predicts the fatigue resistance of tensile-shear spot welds under constant amplitude loading test. The TSIP model consists of Stage I--fatigue crack initiation and early growth, Stage II--through sheet thickness crack propagation, and Stage III--across sheet width crack propagation. The improvements of tensile-shear spot weld fatigue resistance through manipulation of geometry, residual stress and material property variables are discussed with the aid of the model. The TSIP model suggests that, in addition to the influence of geometry, residual stresses at the site of crack initiation greatly influence the fatigue resistance of tensile-shear spot welds. The TSIP model predicts the subtle role of material properties in determing the fatigue resistance of tensile-shear spot welds.","Tensile-shear spot welds of low carbon and HSLA steel sheet spot welds have been tested to determine the effect of change in nugget shape, preloading and coining post-weld treatments. The effect of these treatments on the fatigue resistance of spot welds was determined using constant amplitude and variable load histories. The experimental results were compared with predictions made using the TSIP model.","Made available in DSpace on 2014-12-16T20:51:59Z (GMT). No. of bitstreams: 1 8502336.pdf: 3115218 bytes, checksum: f447b48bbd9cae3bd52a98e53afc242f (MD5) Previous issue date: 1984","Embargo set by: Seth Robbins for item 71980 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","U of I Only","137 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1984."],"dc:identifier":["http://hdl.handle.net/2142/71814","(UMI)AAI8502336"],"dc:subject":["Engineering, Metallurgy"],"dc:title":["A Fatigue Life Prediction Method for Tensile-Shear Spot Welds"],"dc:type":["text"],"thesis:degree_discipline":["Metallurgical Engineering"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:26:05Z"}