Cosserat Theory
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. On the observation of extended microstructures and localized deformations in granular materials - A feature of excat quasi-convex energy envelope
Abstract In this paper a most promising scope of the exact quasiconvex energy envelope in modeling the granular materials with microstructures is presented. This study shows that it is possible to observe both the extended microstructures and localized deformations in granular materials using a variational model based on the mathematical relaxation theory. T
Lat. Am. j. solids struct.. Publicado em: 25/04/2019
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2. Time Domain Modeling and Simulation of Nonlinear Slender Viscoelastic Beams Associating Cosserat Theory and a Fractional Derivative Model
Abstract A broad class of engineering systems can be satisfactory modeled under the assumptions of small deformations and linear material properties. However, many mechanical systems used in modern applications, like structural elements typical of aerospace and petroleum industries, have been characterized by increased slenderness and high static and dynamic
Lat. Am. j. solids struct.. Publicado em: 2017-01
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3. Desenvolvimento de procedimentos de modelagem de interação fluido-estrutura combinando a Teoria de Vigas de Cosserat e a metologia de fronteira imersa / Developing procedures for modeling fluid-structure interaction by combining the Cosserat beams theory and immersed boundary methodology
A presente tese descreve o trabalho de pesquisa realizado, com o objetivo de desenvolver, implementar e avaliar um procedimento de modelagem tridimensional de fenômenos fluidoestruturais que envolvem estruturas esbeltas, tais como vigas, barras e cabos. A nova abordagem adotada consiste na combinação da teoria de vigas de Cosserat aplicada a estruturas es
Publicado em: 2010
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4. Numerical solutions to a cloth model based on the Cosserat surface / Soluções numericas em um modelo de tecidos baseado na superficie de Cosserat
Currently, physics-based models are frequently used for cloth simulations. There are basically two approaches: particle mechanics and continuum mechanics. The particle mechanics is at the present time the most widely used method, having some advantages like an easy formulation and a high performance. The continuum mechanics is regarded as being a more precis
Publicado em: 2008
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5. Mecanical and numerical models to unidimensional flexible structures / Modelos mecânicos e numéricos para estruturas flexíveis unidimensionais
Apresentamos um modelo matemático geral, baseado na teoria de Cosserat para estruturas flexíveis unidimensionais, em regime de deslocamentos finitos e sujeitas a restrições unilaterais. Ao modelo geral agregamos a hipótese de inextensibilidade e, desprezando os efeitos do cisalhamento e das forças inerciais, formulamos o problema variacionalmente tanto
Publicado em: 2007