{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/71800"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/71800","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"The Fatigue of Weldments Subjected to Complex Loadings","abstract":"Cruciform and double-strap lap weldments were fatigue tested under constant amplitude axial load and SAE Bracket Spectrum load conditions. For the cruciform weldments, fatigue cracks generally initiate at the root but may initiated the toe if higher bending stresses are induced by joint distortion. For double strap lap weldments, the stress ratio (R) and weld shape are the major factors influencing the fatigue crack initiation site.","abstract_html":"Cruciform and double-strap lap weldments were fatigue tested under constant amplitude axial load and SAE Bracket Spectrum load conditions. For the cruciform weldments, fatigue cracks generally initiate at the root but may initiated the toe if higher bending stresses are induced by joint distortion. For double strap lap weldments, the stress ratio (R) and weld shape are the major factors influencing the fatigue crack initiation site.","abstract_has_math":false,"creators":["Ho, New-Jin"],"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":"2014-12-16T20:51:51Z","date_published":"2014-12-16T20:51:51Z","updated_at":"2026-07-22T22:26:05Z","subjects":["Engineering, Metallurgy"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(UMI)AAI8309957"],"render_values":[{"text":"(UMI)AAI8309957","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/71800","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Ho, New-Jin"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2014-12-16T20:51:51Z","10000-01-01","1982"]},{"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/2142/71800","(UMI)AAI8309957"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Cruciform and double-strap lap weldments were fatigue tested under constant amplitude axial load and SAE Bracket Spectrum load conditions. For the cruciform weldments, fatigue cracks generally initiate at the root but may initiated the toe if higher bending stresses are induced by joint distortion. For double strap lap weldments, the stress ratio (R) and weld shape are the major factors influencing the fatigue crack initiation site.","The fatigue test results were compared with predictions made using an initiation-propagation model, and good agreement between experiment and theory was observed. The model for the predictions assumes that the fatigue crack initiation period, which is the number of cycles for the initiation of a fatigue crack and its early growth and coalescence into a dominant fatigue crack, is the main portion of the total fatigue life at long lives.","Made available in DSpace on 2014-12-16T20:51:51Z (GMT). No. of bitstreams: 1 8309957.pdf: 3556974 bytes, checksum: fff23e320df5c18c715fb7093ac8089b (MD5) Previous issue date: 1982","Embargo set by: Seth Robbins for item 71966 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","151 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1982."]},{"key":"dc:title","label":"Title","values":["The Fatigue of Weldments Subjected to Complex Loadings"]}]}],"canonical_facts":{"dc:creator":["Ho, New-Jin"],"dc:date":["2014-12-16T20:51:51Z","10000-01-01","1982"],"dc:description":["Cruciform and double-strap lap weldments were fatigue tested under constant amplitude axial load and SAE Bracket Spectrum load conditions. For the cruciform weldments, fatigue cracks generally initiate at the root but may initiated the toe if higher bending stresses are induced by joint distortion. For double strap lap weldments, the stress ratio (R) and weld shape are the major factors influencing the fatigue crack initiation site.","The fatigue test results were compared with predictions made using an initiation-propagation model, and good agreement between experiment and theory was observed. The model for the predictions assumes that the fatigue crack initiation period, which is the number of cycles for the initiation of a fatigue crack and its early growth and coalescence into a dominant fatigue crack, is the main portion of the total fatigue life at long lives.","Made available in DSpace on 2014-12-16T20:51:51Z (GMT). No. of bitstreams: 1 8309957.pdf: 3556974 bytes, checksum: fff23e320df5c18c715fb7093ac8089b (MD5) Previous issue date: 1982","Embargo set by: Seth Robbins for item 71966 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","151 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1982."],"dc:identifier":["http://hdl.handle.net/2142/71800","(UMI)AAI8309957"],"dc:subject":["Engineering, Metallurgy"],"dc:title":["The Fatigue of Weldments Subjected to Complex Loadings"],"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"}