{"id":{"repo_id":"brazil-uerj","oai_identifier":"oai:pantheon.ufrj.br:11422/3418"},"canonical_url":"https://search.dev.ndltd.org/etd/brazil-uerj/oai:pantheon.ufrj.br:11422/3418","repository":{"repo_id":"brazil-uerj","name":"Brazil UERJ","base_url":"https://pantheon.ufrj.br/oai/request"},"display":{"title":"Bifurcação secundária instável em placas retangulares","abstract":"The non-linear elastic behaviour in thin flat plates under the effects of initial imperfections and coupled modes is analysed in the presented work. Through this analysis it is detected, along the imperfect fundamental equilibrium path, secondary points of bifurcation which may be stable or unstable. The obtained results show that even for practical geometries, a flat plate under uniaxial compression may loose its stability in the elastic regime and therefore, before the occurence of plastic colapse.","abstract_html":"The non-linear elastic behaviour in thin flat plates under the effects of initial imperfections and coupled modes is analysed in the presented work. Through this analysis it is detected, along the imperfect fundamental equilibrium path, secondary points of bifurcation which may be stable or unstable. The obtained results show that even for practical geometries, a flat plate under uniaxial compression may loose its stability in the elastic regime and therefore, before the occurence of plastic colapse.","abstract_has_math":false,"creators":["Bertolino Júnior, Renato"],"institution":"Universidade Federal do Rio de Janeiro","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Batista, Ronaldo Carvalho"],"committee_chairs":[],"committee_members":[],"year":1984,"date_issued":"1984-06","date_published":"1984-06","updated_at":"2026-07-24T01:16:01Z","subjects":["Engenharia Civil"],"languages":["por"],"rights":["Acesso Aberto"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11422/3418","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Batista, Ronaldo Carvalho"]},{"key":"dc:creator","label":"Author","values":["Bertolino Júnior, Renato"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2018-01-10T12:23:21Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2026-05-16T03:04:25Z"]},{"key":"dc:date.issued","label":"Date","values":["1984-06"]},{"key":"dc:publisher","label":"Institution","values":["Universidade Federal do Rio de Janeiro"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia"]},{"key":"dc:type","label":"Dc Type","values":["Dissertação"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Engenharia Civil"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["por"]},{"key":"dc:rights","label":"Dc Rights","values":["Acesso Aberto"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/11422/3418"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The non-linear elastic behaviour in thin flat plates under the effects of initial imperfections and coupled modes is analysed in the presented work. Through this analysis it is detected, along the imperfect fundamental equilibrium path, secondary points of bifurcation which may be stable or unstable. The obtained results show that even for practical geometries, a flat plate under uniaxial compression may loose its stability in the elastic regime and therefore, before the occurence of plastic colapse."]},{"key":"dc:title","label":"Title","values":["Bifurcação secundária instável em placas retangulares"]}]}],"canonical_facts":{"dc:contributor.advisor":["Batista, Ronaldo Carvalho"],"dc:creator":["Bertolino Júnior, Renato"],"dc:date.accessioned":["2018-01-10T12:23:21Z"],"dc:date.available":["2026-05-16T03:04:25Z"],"dc:date.issued":["1984-06"],"dc:description.abstract":["The non-linear elastic behaviour in thin flat plates under the effects of initial imperfections and coupled modes is analysed in the presented work. Through this analysis it is detected, along the imperfect fundamental equilibrium path, secondary points of bifurcation which may be stable or unstable. The obtained results show that even for practical geometries, a flat plate under uniaxial compression may loose its stability in the elastic regime and therefore, before the occurence of plastic colapse."],"dc:identifier.uri":["http://hdl.handle.net/11422/3418"],"dc:language":["por"],"dc:publisher":["Universidade Federal do Rio de Janeiro"],"dc:publisher.department":["Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia"],"dc:rights":["Acesso Aberto"],"dc:subject":["Engenharia Civil"],"dc:title":["Bifurcação secundária instável em placas retangulares"],"dc:type":["Dissertação"]},"updated_at":"2026-07-24T01:16:01Z"}