Finite element analysis of residual stress in hybrid laser-arc welding for butt joint of 12 mm-thick steel plate

2018 ◽  
Vol 62 (2) ◽  
pp. 289-300 ◽  
Author(s):  
Guoxiang Xu ◽  
Haichao Pan ◽  
Peng Liu ◽  
Pengfei Li ◽  
Qingxian Hu ◽  
...  
Keyword(s):  
Residual Stress ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Arc Welding ◽  
Steel Plate ◽  
Butt Joint ◽  
Element Analysis ◽  
Hybrid Laser Arc Welding ◽  
Thick Steel

Finite Element Analysis of the Effect of Brazed Residual Stress on Creep for Stainless Steel Plate-Fin Structure

2008 ◽  
Vol 130 (4) ◽  
Author(s):  
Wen-Chun Jiang ◽  
Jian-Ming Gong ◽  
Hu Chen ◽  
S. T. Tu
Keyword(s):  
Residual Stress ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Stainless Steel ◽  
Stress Distribution ◽  
Steel Plate ◽  
Operating Pressure ◽  
Stainless Steel Plate ◽  
Element Analysis ◽  
Creep Analysis

This paper presented a finite element analysis of the effect of brazed residual stress on creep for stainless steel plate-fin structure using finite element code ABAQUS. The as-brazed residual stress distribution generated during the brazing process was obtained. Two cases, which are denoted Cases 1 and 2, were analyzed and compared to discuss the effect of as-brazed residual stress on creep. Case 1 was to carry out creep analysis just at the internal operating pressure. Case 2 was to perform the creep analysis considering the internal operating pressure in conjunction with as-brazed residual stress. The results show that due to the mechanical property mismatch between filler metal and base metal, large residual stress is generated in the brazed joint, which has a great influence on creep for stainless steel plate-fin structure. The creep strain and stress distribution of the overall plate-fin structure is obtained. The position that is most likely to fail is the fillet for the plate-fin structure at high temperature. Especially in the fillet interface, the creep strain and stress distribution are discontinuous and uncoordinated, which have great effect on creep failure.

Influence of Blast Wave on Behavior of Steel Plate

2014 ◽  
Vol 619 ◽  
pp. 28-32
Author(s):  
Yo Han Yoo ◽  
Young Sik Choi ◽  
Joon Won Lee
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Steel Plate ◽  
Von Mises Stress ◽  
Arbitrary Lagrangian Eulerian ◽  
Element Analysis ◽  
Conventional Weapons ◽  
Particle Hydrodynamics ◽  
Thick Steel ◽  
Von Mises

The threat of terrorism has led to increased awareness about protecting properties from damage in terrorist attacks. With the rapid growth of the computer industry and progress in the field of finite-element analysis, evaluations of conventional weapons focus more on simulations than on experiments. There are many approaches to simulate blast and impact. These include Eulerian, Lagrangian, multi-material arbitrary Lagrangian-Eulerian (MM-ALE), and the meshless approach of smooth particle hydrodynamics (SPH) methods. Each method has distinct advantages. In this study, finite-element analysis was applied to simulate a 1 kg trinitrotoluene (TNT) blast in front of a 20-mm-thick steel plate. Three different approaches were simulated: Eulerian, MM-ALE, and SPH. Each method gave different results for the von Mises stress distribution, peak pressure, and displacement of the steel plate. A comparison of the three results implies that using one of these three approaches may generate a significant blast simulation.

Design improvement of a composite-to-steel butt-joint based on finite element analysis

2021 ◽  
Vol 238 ◽  
pp. 109771
Author(s):  
Lin Xu ◽  
Navid Kharghani ◽  
Mengzhen Li ◽  
C. Guedes Soares
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Butt Joint ◽  
Element Analysis ◽  
Design Improvement

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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