O papel da permeação de fluido no cálculo da integral J em géis poliméricos

• Ano de defesa: 2018
• Autor(a) principal: Wendling, Ingrid
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Rio de Janeiro; Brasil; Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia; Programa de Pós-Graduação em Engenharia Mecânica; UFRJ
• Palavras-chave em Português: Poroelasticidade; Géis poliméricos; CNPQ::ENGENHARIAS::ENGENHARIA MECANICA
• Link de acesso: http://hdl.handle.net/11422/12072

Due to its great applicability in different areas, research related to polymer gels returns to spotlight. The prediction of failure mechanisms due to crack nucleation and propagation is object of great interest in engineering, and a lot effort is being put to model the properties of a gel and evaluate its fracture toughness. In particular, the analysis of the phenomena that happen at the crack-tip of a hydrogel is of major importance to calculate J-integral, and consequently, to evaluate the crack growth. It is proposed a small deformation model of a polymer gel that undergoes mode I loading to understand the characteristics of these phenomena.