{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/83807"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/83807","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"A Thermal and Mechanical Model of Laser Cladding","abstract":"2D and 3D FE lagrangian models were developed using the Abaqus(TM) software. Simulation results were obtained for a system (cladding of C95600 copper on AA333 aluminum alloy) in which experiments had been successfully carried out. A simple model of dilution, i.e. the change in local composition due to mixing, is included. In 3D stress analysis, numerical convergence is seen to be a critical issue. A recommendation is made for modeling of LC and similar processes: (1) use 2D models to swiftly explore parameter space; (2) carry out 3D temperature simulations, with meshes matching the process geometry (curved boundaries) and; (3) perform the stress analysis with more regular meshes (with overall planar boundaries) that are more likely to lead to convergence.","abstract_html":"2D and 3D FE lagrangian models were developed using the Abaqus(TM) software. Simulation results were obtained for a system (cladding of C95600 copper on AA333 aluminum alloy) in which experiments had been successfully carried out. A simple model of dilution, i.e. the change in local composition due to mixing, is included. In 3D stress analysis, numerical convergence is seen to be a critical issue. A recommendation is made for modeling of LC and similar processes: (1) use 2D models to swiftly explore parameter space; (2) carry out 3D temperature simulations, with meshes matching the process geometry (curved boundaries) and; (3) perform the stress analysis with more regular meshes (with overall planar boundaries) that are more likely to lead to convergence.","abstract_has_math":false,"creators":["De Deus, Augusto Moita"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Mechanical Engineering","degree_department":null,"school":null,"contributors":["Mazumder, Jyotirmoy"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-09-25T21:12:12Z","date_published":"2015-09-25T21:12:12Z","updated_at":"2026-07-22T22:26:22Z","subjects":["Engineering, Mechanical"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(MiAaPQ)AAI3130906"],"render_values":[{"text":"(MiAaPQ)AAI3130906","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/83807","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Mazumder, Jyotirmoy"]},{"key":"dc:creator","label":"Author","values":["De Deus, Augusto Moita"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015-09-25T21:12:12Z","10000-01-01","2004"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Mechanical 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, Mechanical"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/83807","(MiAaPQ)AAI3130906"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["2D and 3D FE lagrangian models were developed using the Abaqus(TM) software. 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