Virtual Work Principle
Mostrando 112 de 27 artigos, teses e dissertações.

1. Large Displacement Static Analysis of Composite Elliptic Panels of Revolution having Variable Thickness and Resting on WinklerPasternak Elastic Foundation
Abstract Nonlinear static response of laminated composite Elliptic Panels of Revolution Structure(s) (EPRS) having variable thickness resting on WinklerPasternak (WP) Elastic Foundation is investigated in this article. Generalized Differential Quadrature (GDQ) method is utilized to obtain the numerical solution of EPRS. The firstorder shear deformation th
Lat. Am. j. solids struct.. Publicado em: 20/12/2019

2. Exact and inexact differentials in the early development of mechanics and thermodynamics
Abstract We give an account and a critical analysis of the use of exact and inexact differentials in the early development of mechanics and thermodynamics, and the emergence of differential calculus and how it was applied to solve some mechanical problems, such as those related to the cycloidal pendulum. The Lagrange equations of motions are presented in the
Rev. Bras. Ensino Fís.. Publicado em: 02/12/2019

3. Hygrothermomechanical bending of FG piezoelectric plates using quasi3D shear and normal deformations theory
Abstract A simple quasi3D sinusoidal shear and normal deformations theory for the hygrothermomechanical bending of functionally graded piezoelectric (FGP) plate is developed under simplysupported edge conditions. The governing equations are deduced based on the principle of virtual work. The exact solutions for FGP plate are obtained. The current study i
Lat. Am. j. solids struct.. Publicado em: 15/08/2019

4. 2D analysis of laminated composite and sandwich plates using a new fifthorder plate theory
Abstract In the present paper, a new fifthorder shear and normal deformation theory (FOSNDT) is developed for the bidirectional bending analysis of laminated composite and sandwich plates subjected to transverse loads. This theory considered the effects of both transverse shear and normal deformations. Inplane displacements use a polynomial shape function
Lat. Am. j. solids struct.. Publicado em: 17/09/2018

5. Analytical solution for nonlinear dynamic behavior of viscoelastic nanoplates modeled by consistent couple stress theory
Abstract This paper analyses the nonstationary free vibration and nonlinear dynamic behavior of the viscoelastic nanoplates. For this purpose, a sizedependent theory is developed in the framework of the consistent couple stress theory for viscoelastic materials. The previously presented modified couple stress theory was based on some consideration making
Lat. Am. j. solids struct.. Publicado em: 17/09/2018

6. Comparison of semi and fullyimplicit time integration schemes applied to a damage and fatigue phase field model
Abstract In this work, we apply semi and fullyimplicit time integration schemes to the damage and fatigue phase field presented in Boldrini et al. (2016). The damage phase field is considered a continuous dynamic variable whose evolution equation is obtained by the principle of virtual power. The fatigue phase field is a continuous internal variable whose
Lat. Am. j. solids struct.. Publicado em: 14/06/2018

7. An axisymmetric nodal averaged finite element
Abstract A nodal averaging technique which was earlier used for plane strain and threedimensional problems is extended to include the axisymmetric one. Based on the virtual work principle, an expression for nodal force is found. In turn, a nodal force variation yields a stiffness matrix that proves to be nonsymmetrical. But, cumbersome nonsymmetrical ter
Lat. Am. j. solids struct.. Publicado em: 26/04/2018

8. 1D analysis of laminated composite and sandwich plates using a new fifthorder plate theory
Abstract In the present study, a new fifthorder shear and normal deformation theory (FOSNDT) is developed for the analysis of laminated composite and sandwich plates under cylindrical bending. The theory considered the effects of transverse shear and normal deformations. To account for the effect of transverse shear deformation, inplane displacement uses
Lat. Am. j. solids struct.. Publicado em: 23/04/2018

9. Bending, Vibration and Buckling of Laminated Composite Plates Using a Simple Four Variable Plate Theory
Abstract In the present study, a simple trigonometric shear deformation theory is applied for the bending, buckling and free vibration of crossply laminated composite plates. The theory involves four unknown variables which are five in first order shear deformation theory or any other higher order theories. The inplane displacement field uses sinusoidal fu
Lat. Am. j. solids struct.. Publicado em: 201603

10. Buckling and free vibration analysis of orthotropic plates by using exponential shear deformation theory
In the present paper, an exponential shear deformation theory is used to determine the natural frequencies and critical buckling loads of orthotropic plates. The theory accounts for a parabolic distribution of the transverse shear strains across the thickness, and satisfies the zero traction boundary conditions on the top and bottom surfaces of the plate wit
Lat. Am. j. solids struct.. Publicado em: 201412

11. Thermal flexural analysis of crossply laminated plates using trigonometric shear deformation theory
Thermal stresses and displacements for orthotropic, twolayer antisymmetric, and threelayer symmetric square crossply laminated plates subjected to nonlinear thermal load through the thickness of laminated plates are presented by using trigonometric shear deformation theory. The inplane displacement field uses sinusoidal function in terms of thickness co
Lat. Am. j. solids struct.. Publicado em: 201309

12. Flexural analysis of crossply laminated beams using layerwise trigonometric shear deformation theory
In the present work, a layerwise trigonometric shear deformation theory is used for the analysis of two layered (90/0) cross ply laminated simply supported and fixed beams subjected to sinusoidal load. The displacement field of the present theory consists of trigonometric sine function in terms of thickness coordinate to take into account the effect of trans
Lat. Am. j. solids struct.. Publicado em: 201307