Finite Element Analysis of Metal Flow of Finishing Groove in Hot Continuous Rolling Bar

2012 ◽  
Vol 510 ◽  
pp. 667-672
Author(s):  
Jia Lin Zhou ◽  
Chen Gang Pan ◽  
Xiao Yong Zhang
Keyword(s):  
Strain Distribution ◽  
Metal Flow ◽  
Dimensional Accuracy ◽  
Stress And Strain ◽  
Fe Model ◽  
Element Analysis ◽  
Iron And Steel ◽  
Expansion Angle ◽  
The Stability ◽  
Stress And Strain Distribution

This article established 3D FE model of dual-radius arc finishing groove and tangent expansion angle finishing groove using ANSYS / LS-DYNA software for Wuhan Iron and Steel plant Ф16 hot continuous bar, and analyzed metal flow pattern, stress and strain distribution of two types finishing grooves. The results show that surface stress and strain distribution of dual-radius arc finishing groove have better uniform than them of tangent expansion angle finishing groove, and dual-radius arc finishing groove ensures the stability of the rolled piece in finishing groove, improve the dimensional accuracy and surface quality of rolled finishing product.

Stress and Strain Distribution in the Upsetting Process

2021 ◽  
pp. 288-301
Author(s):  
Japheth Obiko ◽  
Fredrick Madaraka Mwema
Keyword(s):  
Finite Element ◽  
Strain Distribution ◽  
Metal Flow ◽  
Stress Strain ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Contact Surfaces ◽  
Stress Behaviour ◽  
Stress And Strain Distribution ◽  
Forging Load

Numerical simulation of metal flow behaviour was studied using DeformTM3D software. The simulation process was done on X20 steel taken from the software database at 1073-1273K temperature, 10mm/s die speed, and 67% height reduction. From the simulation results, forging load, damage, and stress/strain distributions were obtained. The results show that the forging load increased with a decrease in temperature or decreased with an increase in temperature. The maximum damage values increased as the temperature increased. The obtained maximum damage values were 0.42 (1073K), 0.43 (1173K), and 0.45 (1273K). The damage distribution was inhomogeneous in the deformed cylinder. The stress/strain distributions were inhomogeneous in the deformed cylinder. The location of the maximum strain was at the centre of the deformed cylinder while the maximum stress occurred at the die-cylinder contact surfaces. The study showed that flow stress behaviour can be predicted using finite element method. This shows the feasibility of applying the finite element analysis to analyse the forging process.

The Strength Analysis of Aircraft Landing Gear Strut Based on ANSYS

2012 ◽  
Vol 490-495 ◽  
pp. 2686-2690 ◽  
Author(s):  
Fei Chen ◽  
Yong Lv ◽  
Zhi Wei Xing
Keyword(s):  
Strain Distribution ◽  
Landing Gear ◽  
Strength Analysis ◽  
Stress And Strain ◽  
Element Analysis ◽  
Damage Prediction ◽  
Aircraft Landing ◽  
Aircraft Landing Gear ◽  
Stress And Strain Distribution ◽  
Accurate Stress

Because the landing gear structure is complicated, it is difficult to draw accurate stress and strain distribution through the theoretical calculation. In this paper, based on the modeling and stress analysis of the buffer mechanism of aircraft landing gear, by converting the stress of a dynamic system into a static stress, the force of the landing gear struts are calculated. This paper analyzes the strength of the aircraft main landing gear by using computer simulation technology and finite element analysis, it provides an effective basis for maintenance and the damage prediction

Fabrication of medical footwear for suitable distribution of stress and strain and reduction of plantar pressure by numerical and experimental approaches

2019 ◽  
Vol 233 (10) ◽  
pp. 1051-1063 ◽  
Author(s):  
Ehsan Shakouri ◽  
Alireza Mossayebi ◽  
Payam Saraeian
Keyword(s):  
Strain Distribution ◽  
Styrene Butadiene Rubber ◽  
Stress And Strain ◽  
Butadiene Rubber ◽  
Element Analysis ◽  
Kevlar Fiber ◽  
Plantar Region ◽  
Distribution Of Stress ◽  
Styrene Butadiene ◽  
Stress And Strain Distribution

Medical insoles and orthopedic shoes are responsible for reducing the force exerted by the ground to the plantar region of the feet. This combination is designed to develop a suitable distribution of stress and strain in the plantar region. In the present study, attempts have been made to design a prototype of medical footwear which can provide a proper stress and strain distribution in the plantar region while reducing pressure in comparison with current orthopedic footwear. For this purpose, the hyper-elastic behavior materials, including styrene-butadiene rubber, silicon, Plastazote foam, polyfoam, ethylene-vinyl acetate foam, polyurethane foam, and polyurethane, have been investigated, with different degree of hardness as well as one layer of composite with Kevlar fiber, whose effect is reducing the pressure exerted to the feet. A combination of materials was used to construct an insole sample, and uniaxial pressure tests were performed for testing its mechanical properties. Then, these properties were used in finite element analysis, whereby the best type of insole for the footwear was chosen and fabricated. The results of finite element analysis were validated using Pedar system and after performing the experimental tests both statically and dynamically. Experimental and numerical investigations suggested that the sole material of orthopedic shoe should be selected as styrene-butadiene rubber. The internal layers of styrene-butadiene rubber frame from top to bottom should be comprised of Plastazote-polyurethane with Kevlar fiber-silicon shore A6, which can be a suitable orthopedic boot in terms of proper stress and strain distribution. Generally, it could reduce the pressure exerted to the sole by 79% compared with barefoot.

Intensity Analysis on Heat Transfer of the Jet Plug-in Hot Blast Furnace

2011 ◽  
Vol 396-398 ◽  
pp. 1856-1859
Author(s):  
Xue Ping Wang ◽  
Ying Zhang ◽  
Pan Li ◽  
Zhen Wei Zhang
Keyword(s):  
Heat Transfer ◽  
Blast Furnace ◽  
Strain Distribution ◽  
High Heat ◽  
Structure Design ◽  
Large Temperature ◽  
Stress And Strain ◽  
Element Analysis ◽  
Hot Blast ◽  
Stress And Strain Distribution

This paper primarily focuses on the analysis on temperature, stress and strain distribution of the heat transfer in the jet plug-in hot blast furnace aiming at obtaining the parts of the heat transfer with relatively high heat stress according to the stress and strain distribution. The authors took advantage of the method of the finite element analysis to study the temperature field. Through the analysis, the authors can figure out that thermal stress can not be found in the highest temperature part, but in the parts with large temperature difference, and meanwhile this thesis puts forward the reasons causing these situations. The conclusion of this paper provides the basis for the further enhancement of the machine life and optimization of the structure design.

Performance Analysis of the Multi U-Shaped Bellows Based on CAE

2014 ◽  
Vol 800-801 ◽  
pp. 390-393
Author(s):  
Liang Zhou ◽  
Liang Li ◽  
Chen Yang Zhao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Strain Distribution ◽  
Elastic Stiffness ◽  
Constant Thickness ◽  
Axial Stiffness ◽  
Stress And Strain ◽  
Element Analysis ◽  
Number Of Layers ◽  
Stress And Strain Distribution

A certain thickness of two, three and four layers of axisymmetric finite element bellows model were built by Abaqus firstly. Then the axial stiffness and stress and strain distribution of multi U-shaped bellows were simulated by finite element analysis. The results showed that in the case of a constant thickness, with the increase of the number of layers of the bellows, the stiffness of the bellows would be significantly reduced, and in the case of large deformation, the overall stiffness of the bellows would change significantly and was divided into elastic stiffness and plastic stiffness.

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