This work deals with the modeling of plate structures constituted Functionally Graded Material through a variable separation approach. The displacement field is approximated as sum separated functions in-plane coordinates x, y and transverse coordinate z. choice yields to nonlinear problem that can be solved by an iterative process. Two 2D 1D linear problems are successively. In thickness direc...

The development of efficient computational models for the accurate prediction state variables in general composite laminated shells undergoing uniform edge loadings is a major challenge, especially when stress concentration phenomena such as free-edge effect have to be considered. This paper addresses this issue by introducing higher-order semi-analytical approach assessment three-dimensional f...

frictional shear stress is usually determined by utilizing the coefficient of friction or the constant friction factor models. the present study deals with finite element analysis of double cup extrusion process to determine the relationship between constant friction factor (m) and coefficient of friction (µ), since the metal flow in this process is very sensitive to frictional conditions. ther...

We present a confocal microscopy study of 1.55 microm monodisperse silica hard spheres as they sediment and crystallize at the bottom wall of a container. If the particles sediment onto a feature less flat wall, the two bottom layers crystallize simultaneously and layerwise growth follows. If the wall is replaced by a hexagonal template, only layerwise growth occurs. Our results complement earl...

finite and boundary element methods have been used by many authors to solve mathematicalphysics problems. however, the coupling of these two methods happens to be more efficient as it combinestheir merits. in this paper, the mathematical analysis of the coupling of finite and boundary element methodsfor the helmholtz equation is presented.

objectives : this finite element method study aimed to compare the amount of stress on an isolated mandibular second premolar in two conventional reciprocal parallel interface designs of removable partial dentures (rpds) and the same rpd abutment tooth (not isolated). materials and methods: a kennedy class 1, modification 1 rpd framework was simulated on a 3d model of mandible with three differ...

in this study, an extended stress-based forming limit diagram (fld) for prediction of necking based on the marciniak and kucznski (m-k) model is represented and applied in tube hydroforming. the bulge forming of a straight tube is simulated by finite element method and verified with published experimental data. this adaptive simulation technique is based on the ability to detect the onset and g...

Building deep neural networks to control autonomous agents which have to interact in real-time with the physical world, such as robots or automotive vehicles, requires a seamless integration of time into a network’s architecture. The central question of this work is, how the temporal nature of reality should be reflected in the execution of a deep neural network and its components. Most artific...

The present work aims at building an explicit solution with respect to Functionally Graded Material (FGM) parameter for plate structures. For that, the displacement field is written under a separated variables form: in-plane coordinates x,y, transverse coordinate z and material chosen beforehand. This choice yields non-linear problem that can be solved by iterative process based on classical fi...

The free edges of layered structures require special attention in design processes. Due to the discontinuous material properties, singular stress concentrations occur where layer interfaces meet edge. These bi-material points have be closely examined as possible starting for delamination In present study, we propose an efficient approximate closed-form method analyze interlaminar shear stresses...