Vibrações de placas sandwich enrijecidas por barras conectoras

• Ano de defesa: 1980
• Autor(a) principal: Freire, Antônio José de Alencastro Muniz
• 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 Civil; UFRJ
• Palavras-chave em Português: Painéis sandwich; Vibrações; Deformação e estresses; CNPQ::ENGENHARIAS::ENGENHARIA CIVIL::ESTRUTURAS::ESTRUTURAS METALICAS
• Link de acesso: http://hdl.handle.net/11422/2986

Analysis of the free transverse vibration equations of retangular sandwich-type plates including spaced transverse posts between the faces which introduce additional stiffness in the core, under compressive uniforme load acting in the midplane, as well as the determination of the critical loads by a dynamical process. The equations of vibration were obtained through the substitution of the constitutive equations into the equations of motion. Some results, as the variation of the natural frequencies and critical loads with the shear stiffness of the plate changing the sizes of the transverse posts were plotted. It is also plotted the influence on the critical load of the vibration mode and the transverse posts stiffness.