In this paper, free vibration analysis of orthotropic functionally graded material (FGM) cylinders was carried out by a Mesh-Free method. In this analysis, moving least squares shape functions are used for approximation of displacement field in the weak form of equilibrium equation. Essential boundary conditions are imposed by transformation method. In this simulation, an axisymmetric model is ...

The proposed approach combines the advantages of isogeometric analysis (IGA) and scaled boundary finite element method (SBFEM). The IGA is employed for idealization of the dam structure, while SBIGA is developed for modeling the semi-infinite fluid domain of reservoir and unbounded elastic half-space of the dam foundation. Water compressibility, reservoir boundary wave absorption can be taken i...

In this paper, a generalized expression for the flow field in axisymmetric extrusion process is suggested to be valid for any dies and the boundary shapes of the plastic deformation zone. The general power terms are derived and the extrusion force is calculated by applying upper bound technique for a streamlined die shape and exponential functions for shear boundaries. It is shown that assuming...

in this study, the analysis of transient thermoelastic response of a functionally graded (fg) non-axisymmetric viscoelastic cylinder is presented. the material properties are assumed to be time- dependent and radially and circumferentially non-homogeneous. the finite element (fe) formulations of the thermoelastic problem are obtained using the virtual work method and all the coupling terms are ...

Abstract The scaled boundary finite element method (SBFEM) is a relatively recent that allows the approximation of solutions to partial differential equations (PDEs) without need fundamental solution. A theoretical framework for convergence analysis SBFEM proposed here. This achieved by defining space semi-discrete functions and constructing an interpolation operator onto this space. We prove e...

This paper proposes and validates a new formulation on the dynamic response of dam-reservoir system, including water compressibility, absorption of the boundary of the reservoir, the earthquake excitation from different directions and the radiation condition boundary at infinity. The impounded water is modeled by Scaled Boundary Finite Element Method, and discretization only at the boundary coi...