FEA of Residual Stresses in Butt Welding of Two Stainless Steel Plates

FEA of Residual Stresses in Butt Welding of Two Stainless Steel Plates
Author: Gurinder Singh Brar
Publisher: LAP Lambert Academic Publishing
Total Pages: 68
Release: 2013-01
Genre:
ISBN: 9783659329494

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One of the most widely used permanent joining processes is welding. Welding results in a very complex thermal cycle which results in irreversible elastic-plastic deformation and residual stresses in and around fusion zone and heat affected zone (HAZ). Residual stresses may be an advantage or disadvantage in structural components depending on their nature and magnitude. Due to these residual stresses produced in and around the weld zone the strength and life of the component is reduced. In present study a commercially available finite element code was used to model and analyze a three dimensional model of the butt welded joint of two AISI 304 stainless steel plate used for manufacturing sugar hoppers. Butt welding simulations were performed by four different welding techniques - submerged arc welding (SAW), manual metal arc welding (MMAW), gas metal arc welding (MIG) and gas tungsten arc welding (TIG). Analysis of butt welded joint showed that butt welds produced by MIG resulted in lowest value of residual stress in plates. Critical analysis of butt welded joint by MIG and TIG showed that by increasing plate thickness, the residual stresses also increases.

Finite Element Analysis of Residual Stresses in Welds

Finite Element Analysis of Residual Stresses in Welds
Author: Theo Farrow
Publisher:
Total Pages: 96
Release: 2007
Genre: Finite element method
ISBN:

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"The objective of this paper has been to model the cooling process of a simple butt weld using the finite element anlaysis (FEA) method to analyse the formation of welding induced residual stresses. This study involved detailed finite element analysis of the temperatures, stresses, and distortions which occur throughout the welding cycle"--Abstract.

Study of Finite Element Modelling of Multipass Welds

Study of Finite Element Modelling of Multipass Welds
Author:
Publisher:
Total Pages:
Release: 1986
Genre:
ISBN:

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The initial objective was to develop a finite element model to predict weldresidual stress, with special emphasis on multipass weldments. Asubsequent objective was to investigate how weld passes interact in a multi-pass weld. A simplified but reliable analysis procedure for theprediction of the final residual stress state in a multi-pass weld wassought The use of a commercial finite element package called ABAQUS [1.1]was examined. The package was modified to meet the needs of the study.

Minimization of Welding Distortion and Buckling

Minimization of Welding Distortion and Buckling
Author: Pan Michaleris
Publisher: Elsevier
Total Pages: 319
Release: 2011-05-25
Genre: Technology & Engineering
ISBN: 0857092901

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Welding is a cost-effective and flexible method of fabricating large structures, but drawbacks such as residual stress, distortion and buckling must be overcome in order to optimize structural performance. Minimization of welding distortion and buckling provides a systematic overview of the methods of minimizing distortion and buckling in welded structures. Following an introductory chapter, part one focuses on understanding welding stress and distortion, with chapters on such topics as computational welding mechanics, modelling the effect of phase transformations on welding stress and distortion and using computationally efficient reduced-solution methods to understand welding distortion. Part two covers different methods of minimizing welding distortion. Chapters discuss methods such as differential heating for minimizing distortion in welded stiffeners, dynamic thermal tensioning, reverse-side heating and ways of minimizing buckling such as weld cooling and hybrid laser arc welding. With its distinguished editor and international team of contributors, Minimization of welding distortion and buckling is an essential reference for all welders and engineers involved in fabrication of metal end-products, as well as those in industry and academia with a research interest in the area. Provides a systematic overview of the methods of minimizing distortion and buckling in welded structures Focuses on understanding welding stress and distortion featuring computational welding mechanics and modelling the effect of phase transformations Explores different methods of minimizing welding distortion discussing differential heating and dynamic thermal tensioning

Advances in Simulation, Product Design and Development

Advances in Simulation, Product Design and Development
Author: P. K. Jain
Publisher: Springer Nature
Total Pages: 366
Release: 2022-09-18
Genre: Technology & Engineering
ISBN: 981194556X

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This book presents select proceedings of the 8th International and 29th All India Manufacturing Technology, Design and Research Conference (AIMTDR 2021). It covers the recent developments in the areas of product design and development, computer-aided design, computer-aided manufacturing, computer-aided engineering, reverse engineering, modelling and simulation of manufacturing systems, simulation of manufacturing processes, vibration analysis, machine tool design and development, optimization techniques, etc. The contents of this book will be useful for students, researchers and as well as industry professionals in the various fields of mechanical engineering.