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FINITE ELEMENT ANALYSIS OF RESIDUAL STRESSES IN WELDED STRUCTURES

One of the problems during welding process is residual stress or welding distortion. This situation affects the integrity of welded structures because the zone that has high residual stresses will have a greater tendency to crack or fail. The objective of this project is to simulate the residual...

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Main Author: Sholihotdin, Syahirhatim
Format: Final Year Project
Language:English
Published: Universiti Teknologi Petronas 2011
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://utpedia.utp.edu.my/7382/1/2011%20-%20Finite%20element%20analysis%20of%20residul%20stresses%20in%20welded%20structures.pdf
http://utpedia.utp.edu.my/7382/
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spelling my-utp-utpedia.73822017-01-25T09:41:52Z http://utpedia.utp.edu.my/7382/ FINITE ELEMENT ANALYSIS OF RESIDUAL STRESSES IN WELDED STRUCTURES Sholihotdin, Syahirhatim TJ Mechanical engineering and machinery One of the problems during welding process is residual stress or welding distortion. This situation affects the integrity of welded structures because the zone that has high residual stresses will have a greater tendency to crack or fail. The objective of this project is to simulate the residual stresses in the welded structure by using finite element analysis. The ANSYS software will be used to simulate the welding process. In this simulation, Gas Tungsten Arc Welding (GTA W) had been chosen as welding type and the welded plate will undergo butt joint process to join them together. Birth and death elements were used to simulate the movement of the welding process. The temperature-dependent material properties have being applied to the model. Bias method has been applied at the area of concern especially at the area where the heat flux is being applied. The heat convection need to be applied to the model and for the welding process, heat flux will be applied in the weld zone element from the first element until the last element at the welding zone. The prediction of welding residual stresses using finite element method starts with thermal analysis and followed by structural analysis. A few tests will be done by varying the plate thickness. The results from the variation of plate thickness will be compared. Data that will be interpreted from the model are stress versus distance along the welding line, fusion line and along the mid section. From these result, the residual stresses will be investigated. Universiti Teknologi Petronas 2011-09 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/7382/1/2011%20-%20Finite%20element%20analysis%20of%20residul%20stresses%20in%20welded%20structures.pdf Sholihotdin, Syahirhatim (2011) FINITE ELEMENT ANALYSIS OF RESIDUAL STRESSES IN WELDED STRUCTURES. Universiti Teknologi Petronas. (Unpublished)
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Electronic and Digitized Intellectual Asset
url_provider http://utpedia.utp.edu.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Sholihotdin, Syahirhatim
FINITE ELEMENT ANALYSIS OF RESIDUAL STRESSES IN WELDED STRUCTURES
description One of the problems during welding process is residual stress or welding distortion. This situation affects the integrity of welded structures because the zone that has high residual stresses will have a greater tendency to crack or fail. The objective of this project is to simulate the residual stresses in the welded structure by using finite element analysis. The ANSYS software will be used to simulate the welding process. In this simulation, Gas Tungsten Arc Welding (GTA W) had been chosen as welding type and the welded plate will undergo butt joint process to join them together. Birth and death elements were used to simulate the movement of the welding process. The temperature-dependent material properties have being applied to the model. Bias method has been applied at the area of concern especially at the area where the heat flux is being applied. The heat convection need to be applied to the model and for the welding process, heat flux will be applied in the weld zone element from the first element until the last element at the welding zone. The prediction of welding residual stresses using finite element method starts with thermal analysis and followed by structural analysis. A few tests will be done by varying the plate thickness. The results from the variation of plate thickness will be compared. Data that will be interpreted from the model are stress versus distance along the welding line, fusion line and along the mid section. From these result, the residual stresses will be investigated.
format Final Year Project
author Sholihotdin, Syahirhatim
author_facet Sholihotdin, Syahirhatim
author_sort Sholihotdin, Syahirhatim
title FINITE ELEMENT ANALYSIS OF RESIDUAL STRESSES IN WELDED STRUCTURES
title_short FINITE ELEMENT ANALYSIS OF RESIDUAL STRESSES IN WELDED STRUCTURES
title_full FINITE ELEMENT ANALYSIS OF RESIDUAL STRESSES IN WELDED STRUCTURES
title_fullStr FINITE ELEMENT ANALYSIS OF RESIDUAL STRESSES IN WELDED STRUCTURES
title_full_unstemmed FINITE ELEMENT ANALYSIS OF RESIDUAL STRESSES IN WELDED STRUCTURES
title_sort finite element analysis of residual stresses in welded structures
publisher Universiti Teknologi Petronas
publishDate 2011
url http://utpedia.utp.edu.my/7382/1/2011%20-%20Finite%20element%20analysis%20of%20residul%20stresses%20in%20welded%20structures.pdf
http://utpedia.utp.edu.my/7382/
_version_ 1739831457058127872
score 13.211869

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