The Simulation Spreading Process of Steel Tubes Hollow

2010 ◽  
Vol 165 ◽  
pp. 13-18 ◽  
Author(s):  
Tomasz Cyryl Dyl
Keyword(s):  
Finite Element Analysis ◽  
Internal Diameter ◽  
External Diameter ◽  
Process Stability ◽  
Rigid Plastic ◽  
Steel Tubes ◽  
Spreading Process ◽  
Element Analysis ◽  
Stress And Deformation ◽  
Mandrel Diameter

The paper presents finite element analysis of spreading process of hollow steel tubes implemented within commercial software MES FORGE2-V3.0. To this purpose, rigid-plastic model of deformed material was assumed. The analysis was realised for hollow tube made from steel C45 with external diameter D0 = 50 mm and internal one d0 = 40 mm. Distributions of temperature, stress and deformation for different values of gradient radius of mandrel  (1535) and different friction conditions on the area of metal-tool were determined. With the piercing press the billet is introduced into a vertical or horizontal die, subsequently to be pierced by mandrel. Afterwards pipe is elongated in Diescher’s mill. Hollow steel tubes undergo hot deformation spreading process in two-roll press by mandrel. Process stability depends on dimensions of the hollow tube and mandrel: tube external diameter, tube internal diameter, mandrel diameter and inclination angle of mandrel. Increase of external diameter of hollow tube occurs in the course of spreading process by mandrel. Process parameters depend on chemical composition and type of material. In this paper the contact problem in metal – tool interface is considered. Burnishing implies the sizing of a hollow tube by its plastic spreading.

Finite Element Analysis of Stress and Deformation according to the Shape of Plates for Internal Bone Fixation

2012 ◽  
Vol 47 (4) ◽  
pp. 257 ◽  
Author(s):  
Jun-Hee Moon ◽  
Jee Hyoung Kim ◽  
Bong-Gu Lee ◽  
Song Lee ◽  
Dae Geun Kim
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Element Analysis ◽  
Bone Fixation ◽  
Stress And Deformation

Rigid-Plastic Finite Element Simulation of Cold Forging and Sheet Metal Forming by Eulerian Meshing Method

2014 ◽  
Vol 970 ◽  
pp. 177-184 ◽  
Author(s):  
Wen Chiet Cheong ◽  
Heng Keong Kam ◽  
Chan Chin Wang ◽  
Ying Pio Lim
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Large Deformation ◽  
Sheet Metal ◽  
Metal Forming ◽  
The Body ◽  
Cold Forging ◽  
Rigid Plastic ◽  
Element Analysis ◽  
Linear Solution

A computational technique of rigid-plastic finite element method by using the Eulerian meshing method was developed to deal with large deformation problem in metal forming by replacing the conventional way of applying complicated remeshing schemes when using the Lagrange’s elements. During metal forming process, a workpiece normally undergoes large deformation and causes severe distortion of elements in finite element analysis. The distorted element may lead to instability in numerical calculation and divergence of non-linear solution in finite element analysis. With Eulerian elements, the initial elements are generated to fix into a specified analytical region with particles implanted as markers to form the body of a workpiece. The particles are allowed to flow between the elements after each deformation step to show the deforming pattern of material. Four types of cold forging and sheet metal clinching were conducted to investigate the effectiveness of the presented method. The proposed method is found to be effective by comparing the results on dimension of the final product, material flow behaviour and punch load versus stroke obtained from simulation and experiment.

scholarly journals Coupled thermal-electrical finite element analysis of electrical resistance heating in hot stamping of ultra-high strength steel tubes

2018 ◽  
Vol 15 ◽  
pp. 1047-1054 ◽  
Author(s):  
Mohsen Loh-Mousavi ◽  
Mehdi AhmadiRad ◽  
Tomoyoshi Maeno ◽  
Denis J. Politis ◽  
LiLiang Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Electrical Resistance ◽  
Hot Stamping ◽  
High Strength ◽  
Resistance Heating ◽  
Steel Tubes ◽  
Element Analysis ◽  
Ultra High Strength Steel ◽  
Electrical Resistance Heating

Finite Element Analysis of Ground Imitating Tank

2005 ◽  
Author(s):  
Jiemin Liu ◽  
Guangtao Ma
Keyword(s):  
Finite Element Method ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Dead Weight ◽  
Element Analysis ◽  
Thin Walled ◽  
The Dead ◽  
Stress And Deformation ◽  
Inertia Forces ◽  
Element Method

A typical ground imitating tank is analyzed regarding it as the thin-walled structure composed of plates (skins) and beams (reinforcement) using finite element method (FEM). Through moving the location of reinforcements, make the skins close with the flanges of the reinforcements in order to imitate actually the connection of the skins and the reinforcements. The thickness of plates, the size and the geometry shape and the location of reinforcements are taken as parameters to be optimized. In calculation, not only consider effects of the oil-weight, the extra-pressure in tank and the dead weight of the tank on the stresses and displacements of the tank, but also analyze the effects of the inertia forces produced due to the rotation of the tank on the stresses and displacements. Displacement, stress and deformation distributions of the ground imitating tank under the three typical flying postures imitated are given.

260t Ladle Stress and Deformation Finite Element Analysis

2014 ◽  
Vol 936 ◽  
pp. 1886-1889
Author(s):  
Yan Ping Sun ◽  
De Chen Zhang ◽  
Ming Yang ◽  
Yuan Li
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Working Conditions ◽  
Structural Deformation ◽  
Analysis Software ◽  
Element Analysis ◽  
Strength And Stiffness ◽  
Stress And Deformation ◽  
Distribution Of Stress ◽  
Optimal Designing

In this paper, iron ladle stress and deformation has been accurately calculated using finite element analysis software ANSYS based on 260t iron ladle in standing, lifting, tipping working conditions. Distribution of stress field was obtained. The stiffness and strength of the iron ladle has been evaluated. The results show that the iron ladle in the standing, lifting and tipping working conditions, structural deformation is small, the strength and stiffness meet the requirements. This research extends the working life of 260t iron ladle. It provides theoretical basis for producing and using of the iron ladle and further optimal designing.

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