Global ETD Search
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Showing 1 to 7 of 7 for “"Deformação e estresses"”.
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Análise de estruturas no estado plano de tensões e deformações com materiais elásticos, ortótropos e não lineares
Structural analysis for elastic-materials with non-linear constitutive equations. The principle of stationary energy is shown under weaker conditions than the usual assumption of a generalized Hooke's law. The finite element method is used for solving plane stress and plane strain problems. This …
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Comportamento termoelástico transiente no acoplamento de cilindros circulares concêntricos
The fundamental scope of this dissertation can be summarized in two itens: a) determination of the displacement at the internal boundary of a hollow circular cylinder , under a transient temperature field. b) determination of the coupling stress betweem a cilinder with radius "a" fitted into a …
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Vibrações de placas sandwich enrijecidas por barras conectoras
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 …
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Determinação experimental, para solos residuais saturados, da variação dos parâmetros de resistência com a deformação axial
A description of an experimental technique which makes use of the triaxial test apparatus known as the IDS test as developed by Schmertmann. This technique allows us to determine the components of shear strength of soils, according to new definitions. The shear strength at any deformation is …
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Efeito da temperatura na deformabilidade dos pavimentos asfálticos
Presents a study about the temperature influence on the behavior of the asphalt pavements and countains the following steps: First, we determine the temperature profile in the surface by using its thermal properties and climatic factors, acoording to Barber's theory. Second, we define the resilient …
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Determinação dos parâmetros "elásticos" do solo residual compactado da barragem de Itauba
Analysis of the stress-strain formulation proposed in 1974 by Corotis, Krizek and Farzin. This formulation is applied mostly to problems in which the principal total stresses (σ1, σ3) increase simultaneously mantaining its ratio constant (σ3/σ1=constant); in another words: it includes the total …