Quadrilateral
Mostrando 1-12 de 41 artigos, teses e dissertações.
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1. Neurotecoma na axila causando dor persistente no ombro: Relato de caso
Resumo Neurotecomas, também conhecidos como mixomas da bainha neural, são tumores benignos raros da bainha neural afetando mais comumente a cabeça, braços e ombros de mulheres entre 20 e 40 anos de idade. Devido à baixa prevalência e quadro clínico mal definido, essas lesões são raramente consideradas no diagnóstico diferencial de tumores cutâneos
Rev. bras. ortop.. Publicado em: 2020-12
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2. Finite element modelling to assess the effect of position and size of the piezoelectric layer of a hybrid beam
Abstract A one dimensional finite element model is presented to assess the effect of position and size of the piezoelectric layer of a hybrid beam. The efficient layerwise (zigzag) theory is used for making the finite element model. The 1D beam element has eight mechanical and a variable number of electrical degrees of freedom. The codes are developed in Ma
Lat. Am. j. solids struct.. Publicado em: 03/05/2018
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3. On a Four-Node Quadrilateral Plate for Laminated Composites
Abstract An assessment of the efficiency and convergence characteristics of a four-node quadrilateral plate finite element in the analysis of laminated composites is performed. The element, which is suitable for global response analysis, is developed in the framework of the strain gradient notation such that its modeling capabilities as well as modeling defi
Lat. Am. j. solids struct.. Publicado em: 2017-12
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4. Prediction of Modal Damping of FRP-Honeycomb Sandwich Panels with Arbitrary Geometries
Abstract In this work, the modal characteristics, including modal damping, of FRP composite skin, honeycomb core sandwich panels with arbitrary geometries are computed using a mixed finite element-meshless method. By using the meshless node distribution scheme in conjunction with the lagrangian quadrilateral interpolating functions, the continuity of inter-e
Lat. Am. j. solids struct.. Publicado em: 2017-01
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5. Free Vibration Analysis of a Liquid in a Circular Cylindrical Rigid Tank Using the Hierarchical Finite Element Method
Abstract A hierarchical finite element is developed for the free vibration analysis of a liquid in a rigid cylindrical tank with or without a free surface. It is a hierarchical quadrilateral element and has the advantage that the hierarchical mode number is allowed to vary independently of direction. Liquid behavior in tanks with large aspect ratios can ther
Lat. Am. j. solids struct.. Publicado em: 2016-07
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6. Finite Element Modelling for Static and Free Vibration Response of Functionally Graded Beam
Abstract A 1D Finite Element model for static response and free vibration analysis of functionally graded material (FGM) beam is presented in this work. The FE model is based on efficient zig-zag theory (ZIGT) with two noded beam element having four degrees of freedom at each node. Linear interpolation is used for the axial displacement and cubic hermite int
Lat. Am. j. solids struct.. Publicado em: 2016-04
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7. Soil-Framed Structure Interaction Analysis - A New Interface Element
AbstractInterfacial behavior between soil and shallow foundation has been found so influential to combined soil-footing performance and redistribution of forces in the superstructure. This study introduces a new thin-layer interface element formulated within the context of finite element method to idealize interfacial behavior of soil-framed structure intera
Lat. Am. j. solids struct.. Publicado em: 2015-04
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8. Flexural behavior of general laminated composite and sandwich plates using a secant function based shear deformation theory
A secant function based shear deformable finite element model is developed for the flexural behavior of laminated composite and sandwich plates with various conditions. The structural kinematics of the plate is expressed by means of secant function based shear deformation theory newly developed by the authors. The theory possesses non-linear shear deformatio
Lat. Am. j. solids struct.. Publicado em: 2014-12
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9. A model for evaluation of effective thermal conductivity of periodic composites with poorly conducting interfaces
This paper presents a new micromechanical extension of the parametric finite-volume theory for evaluation of effective thermal conductivities of periodic unidirectional fiber reinforced composites. Such materials are assumed as composed of repeating unit cells with arbitrary internal architectural arrangements of fiber coated by thin interphase with low ther
Mat. Res.. Publicado em: 11/11/2014
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10. Hybrid stress and analytical functions for analysis of thin plates bending
In this paper, two efficient elements for analyzing thin plate bending are proposed. They are a triangular element (THS) and a quadrilateral element (QHS), which have 9 and 12 degrees of freedom, respectively. Formulations of these elements are based on hybrid variational principle and analytical homogeneous solution of thin plate equation. Independent field
Lat. Am. j. solids struct.. Publicado em: 2014-08
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11. Finite element implementation for the analysis of 3D steel and composite frames subjected to fire
This paper presents a finite element formulation for the numerical analysis of three-dimensional framed steel, reinforced concrete or composite steel and concrete structures subjected to fire. Several specialized and commercial programs may be used for the analysis of structures in fire condition. Within this context, the purpose of this work is to present t
Lat. Am. j. solids struct.. Publicado em: 2014-01
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12. Biomechanical analysis of the acetabular buttress-plate: are complex acetabular fractures in the quadrilateral area stable after treatment with anterior construct plate-1/3 tube buttress plate fixation?
OBJECTIVE: The acetabular buttress-plate has been widely used in treating difficult cases with satisfying clinical results. However, the biomechanical properties of a postoperative acetabular fracture fixed by the buttress-plate are not clear. The purpose of this study was to evaluate the biomechanical properties of stability after the anterior tube buttres
Clinics. Publicado em: 2013-07