A Finite Element Model For Residual Stress In Repair Welds
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A Finite Element Model For Residual Stress In Repair Welds
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Author :
language : en
Publisher:
Release Date : 2001
A Finite Element Model For Residual Stress In Repair Welds written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
This paper describes a three-dimensional finite element model for calculation of the residual stress distribution caused by repair welding. Special user subroutines were developed to simulate the continuous deposition of filler metal during welding. The model was then tested by simulating the residual stress/strain field of a FeAl weld overlay clad on a 2[1/4]Cr-1 Mo steel plate, for which neutron diffraction measurement data of the residual strain field were available. It is shown that the calculated residual stress distribution was consistent with that determined with neutron diffraction. High tensile residual stresses in both the longitudinal and transverse directions were observed around the weld toe at the end of the weld. The strong spatial dependency of the residual stresses in the region around the weld demonstrates that the common two-dimensional cross-section finite element models should not be used for repair welding analysis.
Finite Element Modeling Of Residual Stresses In Electroslag Butt Welds
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Author :
language : en
Publisher:
Release Date : 2000
Finite Element Modeling Of Residual Stresses In Electroslag Butt Welds written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Electroslag welding categories.
Finite Element Simulation Of Residual Stresses From Welding And High Frequency Hammer Peening
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Author : Gkatzogiannis, Stefanos
language : en
Publisher: KIT Scientific Publishing
Release Date : 2022-06-30
Finite Element Simulation Of Residual Stresses From Welding And High Frequency Hammer Peening written by Gkatzogiannis, Stefanos and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-06-30 with Technology & Engineering categories.
Research goal of the present monograph is the establishment of an efficient engineering approach, which will include straightforward but accurate simulation models, in order to estimate the residual stress fields of welded joints introduced during welding and their post-weld treatment with High Frequency Hammer Peening. The present subject lies on the intersection of structural engineering, material science and computational mechanics.
Finite Element Analysis Of Residual Stresses In 2cr Mo Repair Welds Including Transformation Plasticity
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Author : Alan Sinclair Oddy
language : en
Publisher:
Release Date : 1989
Finite Element Analysis Of Residual Stresses In 2cr Mo Repair Welds Including Transformation Plasticity written by Alan Sinclair Oddy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with categories.
Assessment Methodologies For Preventing Failure Deterministic And Probabilistic Aspects And Weld Residual Stress
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Author : Raj Mohan
language : en
Publisher:
Release Date : 2000
Assessment Methodologies For Preventing Failure Deterministic And Probabilistic Aspects And Weld Residual Stress written by Raj Mohan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Nuclear power plants categories.
Finite Element Simulation Of Residual Stresses From Welding And High Frequency Hammer Peening
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Author : Stefanos Gkatzogiannis
language : en
Publisher:
Release Date : 2020*
Finite Element Simulation Of Residual Stresses From Welding And High Frequency Hammer Peening written by Stefanos Gkatzogiannis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020* with categories.
A Finite Element Study Of Residual Stresses In A Welded T Joint Specimen
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Author : Danny H. B. Mok
language : en
Publisher:
Release Date : 1988
A Finite Element Study Of Residual Stresses In A Welded T Joint Specimen written by Danny H. B. Mok and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.
Finite Element Modeling Of Residual Stress Formation In Polycarbonate Welds
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Author : Kittichai Sojiphan
language : en
Publisher:
Release Date : 2008
Finite Element Modeling Of Residual Stress Formation In Polycarbonate Welds written by Kittichai Sojiphan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Residual stresses categories.
Abstract: Formation of residual stresses during hot plate welding and other plastic welding processes can have detrimental effects on the joint quality under static and dynamic loading as well as reduce the corrosion resistance of the joints. Therefore, it is important to measure and predict residual stress level to prevent premature failures. Uncoupled finite element thermal analysis and viscoelastic stress-strain analysis were used to calculate the temperature distribution and history in the parts and thermal and residual stress formation during welding. Thermal properties and viscoelastic relaxation modulus of polycarbonate were compiled from the literature to build the material model for the finite element simulation. Residual stress levels in hot plate polycarbonate welds were computed for different hot plate temperatures and heating times. It was found that shorter heating times resulted in faster cooling rates and higher residual stress. The model was also used to calculate residual stresses in through transmission infrared and vibration welding of polycarbonate. The predicted residual stress levels and distributions were in good agreement with published experimental results for hot plate and through transmission infrared welding. Thus, finite element modeling is an effective way for predicting residual stress for a wide range of plastic welding method.
Finite Element Modeling And Validation Of Residual Stresses In 304 L Girth Welds
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Author :
language : en
Publisher:
Release Date : 1998
Finite Element Modeling And Validation Of Residual Stresses In 304 L Girth Welds written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
Three dimensional finite element simulations of thermal and mechanical response of a 304 L stainless steel pipe subjected to a circumferential autogenous gas tungsten arc weld were used to predict residual stresses in the pipe. Energy is input into the thermal model using a volumetric heat source. Temperature histories from the thermal analysis are used as loads in the mechanical analyses. In the mechanical analyses, a state variable constitutive model was used to describe the material behavior. The model accounts for strain rate, temperature, and load path histories. The predicted stresses are compared with x-ray diffraction determinations of residual stress in the hoop and circumferential directions on the outside surface of the pipe. Calculated stress profiles fell within the measured data. Reasons for observed scatter in measured stresses are discussed.
Residual Stresses At Girth Butt Welds In Pipes And Pressure Vessels
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Author :
language : en
Publisher:
Release Date : 1977
Residual Stresses At Girth Butt Welds In Pipes And Pressure Vessels written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Pipe categories.