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Previous issue date: 2014-02-28 / This work presents the positional nonlinear geometric formulation for trusses using different
strain measures. The positional formulation presents an alternative approach for nonlinear problems.
This formulation considers nodal positions as variables of the nonlinear system instead
of displacements (widely found in literature). The work also describes the arc-length method
used for tracing equilibrium paths with snap-through and snap-back. Numerical applications for
trusses already established in the literature and comparisons with other studies are provided
to prove the accuracy of the proposed formulation / Este trabalho apresenta a formula??o posicional n?o linear geom?trica para treli?as usando
diferentes medidas de deforma??o. A formula??o posicional ? uma abordagem alternativa
para problemas n?o lineares. Essa formula??o considera as posi??es nodais como vari?veis
do sistema n?o linear em vez dos deslocamentos (que ? largamente utilizado na literatura). O
trabalho tamb?m descreve o m?todo do comprimento de arco, usado para tra?ar caminhos de
equil?brio com snap-through e snap-back. Aplica??es num?ricas com treli?as j? consagradas
na literatura e compara??es com outros trabalhos s?o fornecidos para provar a acur?cia da
formula??o proposta
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/14861 |
| Date | 28 February 2014 |
| Creators | Lacerda, Est?fane George Macedo de |
| Contributors | CPF:52265854972, http://lattes.cnpq.br/6556306307432176, Maciel, Daniel Nelson, CPF:02147178446, http://lattes.cnpq.br/4343155598427033, Costa J?nior, Jo?o Carlos Arantes, CPF:42364973368, http://lattes.cnpq.br/5028446242533356, Min?, Alexandre Jos? Soares, CPF:32229976400, http://lattes.cnpq.br/3108651560747878, Scudelari, Ada Cristina |
| Publisher | Universidade Federal do Rio Grande do Norte, Programa de P?s-Gradua??o em Engenharia Civil, UFRN, BR, MEC?NICA DAS ESTRUTURAS, ESTRUTURAS DE CONCRETO E ALVENARIA E MATERIAIS E PROCESSOS CONSTRUTIVOS |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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