نتایج جستجو برای: finite element comparison

تعداد نتایج: 981770  

The incremental sheet metal forming (ISMF) process is a new and flexible method that is well suited for small batch production or prototyping. This paper studies the use of the finite element method in the incremental forming process of AA1050 sheets to investigate the influence of tool diameter, vertical step size, and friction coefficient on forming force, spring-back, and thickness distribut...

Ahl Sarmadi, M., , , Atapour, M. , Behjat, A. , Edriss, H. , Vahman , M. ,

Galvanic corrosion is an ever-present problem in all different environments, particularly in tanks. The goal of this project is to develop a finite element model that can be used with experimental data to characterize the corrosion of a galvanic weldments couple in an electrolyte. In this study sample are welded by gas tungsten arc welding and friction stir welding. According to ASTM G8, Evalua...

2006
M. G. Blyth C. Pozrikidis

The performance of the boundary and finite element methods for the Helmholtz equation in two dimensions is investigated. To facilitate the comparison, the system of linear equations arising from the finite element formulation is reduced to a smaller system involving the boundary values of the unknown function and its normal derivative alone. The difference between the boundary and finite elemen...

Journal: :iranian journal of materials forming 2014
sh. molaei m. shahbaz r. ebrahimi

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...

2011
Hajar Hamidian Hamid Soltanian-Zadeh Alireza Akhondi-Asl Reza Faraji-Dana

This paper presents finite element computation for brain deformation during craniotomy. The results are used to illustrate the comparison between two mechanical models: linear solid-mechanic model, and non linear finite element model. To this end, we use a test sphere as a model of the brain, tetrahedral finite element mesh, two models that describe the material property of the brain tissue, an...

J Sheikhi M Poorjamshidian S Peyman

Three-dimensional enriched finite elements are used to compute mixed-mode stress intensity factors (SIFs) for three-dimensional cracks in elastic functionally graded materials (FGMs) that are subject to general mixed-mode loading. The method, which advantageously does not require special mesh configuration/modifications and post-processing of finite element results, is an enhancement of previou...

Journal: :Design of machines and structures 2022

A simple optimization task is programmed by using the built- in programming possibilities of two finite element systems: ANSYS APDL (Parametric Design Language) and COSMOS/M built-in macro language. The same program written different language resulting listings compared. demonstration problem to find minimum safe radius an L-shape model, loaded a uniform surface pressure. solve this builds solv...

A. Golshani K. Goshtasbi M. Behnia M. Fatehi Marji

Numerical methods such as boundary element and finite element methods are widely used for the stress analysis in solid mechanics. This study presents boundary element method based on the displacement discontinuity formulation to solve general problems of interaction between hydraulic fracturing and discontinuities. The crack tip element and a higher order boundary displacement collocation techn...

Journal: :Modelling and Simulation in Materials Science and Engineering 2008

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