FINITE ELEMENT ANALYSIS OF EQUIVALENT STRESS INDUCED BY SURFACE PUNCHING SEVERE DEFORMATION AIMED AT ALLOYING ON LOW-CARBON STEEL

2019 ◽  
Vol 27 (01) ◽  
pp. 1950096
Author(s):  
XIANGYANG MAO ◽  
JIANYU SUN ◽  
HONGXING WANG ◽  
XIUMING ZHAO ◽  
ZHANGZHONG WANG
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Carbon Steel ◽  
Stress Distribution ◽  
Equivalent Stress ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Element Analysis ◽  
Severe Deformation ◽  
Developed Surface

The punching severe deformation is a recently developed surface treatment that forms alloying by inducing a greater compressive equivalent stress field. Despite its proven utility, there has been little attention devoted to the accurate modeling of this process. In this work, a 3D-DEFORM finite element analysis was used to model the equivalent stress distribution induced by the punching process on a low-carbon steel surface. A majority of the controlling parameters of the process were taken into account. The effect of punching number, punching tip size, punching velocity and punching pressure on the equivalent stress distribution was evaluated. The results show that an equivalent stress distribution much higher than the conventional surface severe deformation can be obtained by optimizing the punching severe deformation process. The reported simulation results can successfully predict the punching severe deformation used to create an alloying layer on the surface of low-carbon steel.

The Finite Element Analysis on the Compression Splicing Position of Strain Clamp in Guy Tower

2014 ◽  
Vol 680 ◽  
pp. 249-253
Author(s):  
Zhang Qi Wang ◽  
Jun Li ◽  
Wen Gang Yang ◽  
Yong Feng Cheng
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Finite Element Model ◽  
Equivalent Stress ◽  
Element Model ◽  
Element Analysis ◽  
Elastic Plastic ◽  
The Finite Element Analysis

Strain clamp is an important connection device in guy tower. If the quality of the compression splicing position is unsatisfied, strain clamp tends to be damaged which may lead to the final collapse of a guy tower as well as huge economic lost. In this paper, stress distribution on the compressible tube and guy cable is analyzed by FEM, and a large equivalent stress of guy cable is applied to the compression splicing position. During this process, a finite element model of strain clamp is established for guy cables at compression splicing position, problems of elastic-plastic and contracting are studied and the whole compressing process of compressible position is simulated. The guy cable cracks easily at the position of compressible tube’s port, the inner part of the compressible tube has a larger equivalent stress than outside.

Finite Element Analysis of Hydraulic Clipping Machine Shear Platform Dased on ANSYS

2014 ◽  
Vol 945-949 ◽  
pp. 190-193
Author(s):  
Hai Lin Wang ◽  
Yi Hua Sun ◽  
Ming Bo Li ◽  
Gao Lin ◽  
Yun Qi Feng ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Elastic Strain ◽  
Optimization Design ◽  
Equivalent Stress ◽  
Element Model ◽  
Element Analysis ◽  
Maximum Equivalent Stress

Q43Y-85D type crocodile hydraulic clipping machine was taken as research object to optimization design. A finite element model for clipping machine was built using shell unit as fundamental unit. ANSYS12.0 finite element method was used to analyze the deformation and stress distribution of the shear platform model of hydraulic clipping machine. The result showed that the maximum equivalent stress at the dangerous area was 368.162 MPa and the maximum elastic strain was 0.1814×10-2 mm. After the structural optimization design, it was found that the maximum equivalent stress decreased to 186.238 MPa which did not exceed the material’s yield limitation 215 MPa and the maximum elastic strain decreased to 0.919×10-3 mm which satisfied the requirement of stiffness.

Finite Element Analysis of Cold Expanding of Hollow Thin-Wall Tube

2011 ◽  
Vol 460-461 ◽  
pp. 44-47
Author(s):  
Wei Hua Kuang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Equivalent Stress ◽  
Element Model ◽  
Thin Wall ◽  
Forming Process ◽  
Element Analysis ◽  
Simulation Step ◽  
The Finite Element Analysis

The cold expanding diameter process was simulated by the software of DEFORM. The finite element model of tube and dies were built. The object position definition, the inter object setting, movement definition and simulation step were correctly set. The deformation, total velocity distribution and equivalent stress distribution were predicted. The numerical simulation results showed that the finite element analysis could exactly describe the plastic deformation and stress distribution during the forming process.

Stress Distribution Around Maxillary Anterior Implants as a Factor of Labial Bone Thickness and Occlusal Load Angles: A 3-Dimensional Finite Element Analysis

2014 ◽  
Vol 40 (1) ◽  
pp. 37-42 ◽  
Author(s):  
Marzieh Alikhasi ◽  
Hakimeh Siadat ◽  
Allahyar Geramy ◽  
Ahmad Hassan-Ahangari
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Strain Distribution ◽  
Equivalent Stress ◽  
Stress Strain ◽  
Element Analysis ◽  
Dental Practitioners ◽  
Maximum Equivalent Stress ◽  
Resultant Stress

The purpose of this study was to evaluate the influence of the stress/strain distribution in buccal bone of an anterior maxillary implant using 3 bone thicknesses under 5 different loading angles. Different testing conditions incorporating 3 buccal bone thicknesses, 3 bone compositions, and 5 loading angles of an anterior maxillary implant were applied in order to investigate the resultant stress/strain distribution with finite element analysis. The maximum equivalent stress/strain increased with the decreasing of loading angle relative to the long axis. In addition to loading angle, bone quality and quantity also influenced resultant stress distribution. Dental practitioners should consider combinations of bone composition, diameter, and load angulations to predict success or failure for a given implant length and diameter.

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