scholarly journals Corrigendum to “Reduction of Residual Stress for High-Strength Low-Alloy Steel Strip Based on Finite Element Analysis”

2018 ◽  
Vol 2018 ◽  
pp. 1-1
Author(s):  
Zengshuai Qiu ◽  
Anrui He ◽  
Jian Shao ◽  
Xiaoming Xia
Keyword(s):  
Residual Stress ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Alloy Steel ◽  
Steel Strip ◽  
High Strength ◽  
Low Alloy Steel ◽  
Element Analysis

scholarly journals Reduction of Residual Stress for High-Strength Low-Alloy Steel Strip Based on Finite Element Analysis

2018 ◽  
Vol 2018 ◽  
pp. 1-13 ◽  
Author(s):  
Zengshuai Qiu ◽  
Anrui He ◽  
Jian Shao ◽  
Xiaoming Xia
Keyword(s):  
Residual Stress ◽  
Finite Element ◽  
Boundary Conditions ◽  
Alloy Steel ◽  
Steel Strip ◽  
High Strength ◽  
Uniaxial Tensile ◽  
Uniaxial Tensile Test ◽  
Fe Model ◽  
Low Alloy Steel

Intensive cooling technology is widely utilized in the production of high-strength hot-rolled steel strip. However, intensive cooling at high cooling rate may cause stress heterogeneity on a steel strip, which further generates great residual stress and influences steel strip shape. In this study, a three-dimensional finite element (FE) model of high-strength low-alloy steel strip on the run-out table coupled with heat transfer, phase transformation, and strain/stress is developed by ABAQUS software. To enhance modeling precision, several experiments are conducted, such as uniaxial tensile test at multiple temperatures, dynamic continuous cooling transformation, and scanning electron microscopy, to determine the material properties and boundary conditions of the FE model. Four new models are established based on this model to reduce the residual stress of strip by modifying the initial and boundary conditions. Results show that reducing the initial transverse temperature difference is the most effective in reducing residual stress, followed by sparse cooling, edge masking, and posterior cooling.

Evaluation of Dissimilar Socket Weld Connections

2006 ◽  
Author(s):  
Chakrapani Basavaraju
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stainless Steel ◽  
Alloy Steel ◽  
Finite Element Models ◽  
Low Alloy Steel ◽  
Element Analysis ◽  
Analysis Methodology ◽  
Higher Temperature ◽  
Symmetric Finite Element

In the power industry, stainless steel is widely utilized for instrumentation tubing, while the small bore branch piping up to the root valves is either of carbon steel (A106 Gr. B, A106 Gr. C) or low alloy steel (A335 Gr. P11, A335 Gr. P22), or intermediate alloy steel (A335 Gr. P91). Stainless steel is not widely used for small bore piping. Generally, socket weld connections are employed in small bore piping applications as well as for pipe to tube adapter locations in instrumentation for sampling and sensing line applications. In this paper, socket weld connections at pipe to tube adapter locations are evaluated to determine the acceptability for higher temperature service applications. Finite element analysis methodology, based on axi-symmetric finite element models, is utilized to obtain thermal discontinuity stresses at the dissimilar socket weld connection. Taking into account the stress and cyclic considerations, the dissimilar socket weld connection is evaluated. Limitations and guidelines are provided concerning the acceptability for higher temperature service.

Finite Element Analysis of the Rolling Contact Fatigue Life of Railcar Wheels

2008 ◽  
Vol 575-578 ◽  
pp. 1461-1466
Author(s):  
Byeong Choon Goo ◽  
Jung Won Seo
Keyword(s):  
Heat Treatment ◽  
Residual Stress ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Fatigue Life ◽  
Contact Fatigue ◽  
Rolling Contact ◽  
Element Analysis ◽  
Railway Vehicles ◽  
Contact Fatigue Life

Railcar wheels and axles belong to the most critical components in railway vehicles. The service conditions of railway vehicles have been more severe in recent years due to speed-up. Therefore, a more precise evaluation of railcar wheel life and safety has been requested. Wheel/rail contact fatigue and thermal cracks due to braking are two major mechanisms of the railcar wheel failure. One of the main sources influencing on the contact zone failure is residual stress. The residual stress in wheels formed during heat treatment in manufacturing changes in the process of braking. Thus the fatigue life of railcar wheels should be estimated by considering both thermal stress and rolling contact. Also, the effect of residual stress variation due to manufacturing process and braking process should be included in simulating contact fatigue behavior. In this paper, an evaluation procedure for the contact fatigue life of railcar wheels considering the effects of residual stresses due to heat treatment, braking and repeated contact load is proposed. And the cyclic stressstrain history for fatigue analysis is simulated by finite element analysis for the moving contact load.

Three-Dimensional Finite Element Analysis of Residual Stress in Arteries

2004 ◽  
Vol 32 (2) ◽  
pp. 257-263 ◽  
Author(s):  
M. L. Raghavan ◽  
S. Trivedi ◽  
A. Nagaraj ◽  
D. D. McPherson ◽  
K. B. Chandran
Keyword(s):  
Residual Stress ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Element Analysis ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element
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