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Proceedings Papers

Welding Distortion Can be Mitigated if Welding Current and Traveling Speed Vary Optimized Along a Weld Path

Mahyar Asadi, John Goldak, Arnaud Weck
Proc. ASME. PVP2014, Volume 6B: Materials and Fabrication, V06BT06A058, July 20–24, 2014
Publisher: American Society of Mechanical Engineers
Paper No: PVP2014-28223
https://doi.org/10.1115/PVP2014-28223
View Paper titled, Welding Distortion Can be Mitigated if Welding Current and Traveling Speed Vary Optimized Along a Weld Path
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Topics: Welding, Deformation, Welded joints, Aluminum, Hardware, Photogrammetry, Robots, Transients (Dynamics)
Journal Articles

Challenges in Validation of Computational Weld Mechanics Code to Compute Residual Stress and Distortion in Welds

John Goldak, Mahyar Asadi
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. February 2014, 136(1): 011201.
Paper No: PVT-10-1158
https://doi.org/10.1115/1.4024458
Published Online: October 23, 2013
View Article titled, Challenges in Validation of Computational Weld Mechanics Code to Compute Residual Stress and Distortion in Welds
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Topics: Temperature, Transients (Dynamics), Stress, Strain gages, Displacement, Welded joints
Journal Articles

Optimizing Temper Bead Welding by Computational Weld Mechanics and Design of Experiment Matrix

Mahyar Asadi, Christopher Bayley, John Goldak
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. June 2013, 135(3): 031401.
Paper No: PVT-10-1157
https://doi.org/10.1115/1.4023725
Published Online: May 21, 2013
View Article titled, Optimizing Temper Bead Welding by Computational Weld Mechanics and Design of Experiment Matrix
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Topics: Design, Temperature, Welding, Transients (Dynamics)
Proceedings Papers

Combining Variation Simulation With Welding Simulation for Prediction of Deformation

Andreas Pahkamaa, Kristina Wa¨rmefjord, Lennart Karlsson, Rikard So¨derberg, John Goldak
Proc. ASME. IMECE2010, Volume 11: New Developments in Simulation Methods and Software for Engineering Applications; Safety Engineering, Risk Analysis and Reliability Methods; Transportation Systems, 81-87, November 12–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2010-37369
https://doi.org/10.1115/IMECE2010-37369
View Paper titled, Combining Variation Simulation With Welding Simulation for Prediction of Deformation
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Topics: Deformation, Simulation, Welding
Journal Articles

Welding Induced Distortions and Strains of a Built-Up Panel, Experiment and Numerical Validation

Christopher Bayley, John Goldak
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. April 2012, 134(2): 021212.
https://doi.org/10.1115/1.4004620
Published Online: March 13, 2012
View Article titled, Welding Induced Distortions and Strains of a Built-Up Panel, Experiment and Numerical Validation
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Topics: Welding, Gages, Transients (Dynamics), Temperature
Journal Articles

Combining Variation Simulation With Welding Simulation for Prediction of Deformation and Variation of a Final Assembly

Andreas Pahkamaa, Kristina Wärmefjord, Lennart Karlsson, Rikard Söderberg, John Goldak
Journal: Journal of Computing and Information Science in Engineering
Publisher: ASME
Article Type: Research Papers
J. Comput. Inf. Sci. Eng. June 2012, 12(2): 021002.
https://doi.org/10.1115/1.4005720
Published Online: February 10, 2012
View Article titled, Combining Variation Simulation With Welding Simulation for Prediction of Deformation and Variation of a Final Assembly
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Topics: Simulation, Welding, Manufacturing, Engineering simulation
Proceedings Papers

A Method to Improve Efficiency in Welding Simulations for Simulation Driven Design

Andreas Pahkamaa, Lennart Karlsson, Jonas Pavasson, Magnus Karlberg, Mats Na¨sstro¨m, John Goldak
Proc. ASME. IDETC-CIE2010, Volume 3: 30th Computers and Information in Engineering Conference, Parts A and B, 81-90, August 15–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: DETC2010-28664
https://doi.org/10.1115/DETC2010-28664
View Paper titled, A Method to Improve Efficiency in Welding Simulations for Simulation Driven Design
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Topics: Design, Simulation, Welding, Computation, Design methodology, Fatigue, Heat, Joining, Metals, Product development
Proceedings Papers

Optimizing Temper Bead Welding by CWM and DOE

Mahyar Asadi, John Goldak
Proc. ASME. PVP2010, ASME 2010 Pressure Vessels and Piping Conference: Volume 3, 969-978, July 18–22, 2010
Publisher: American Society of Mechanical Engineers
Paper No: PVP2010-25744
https://doi.org/10.1115/PVP2010-25744
View Paper titled, Optimizing Temper Bead Welding by CWM and DOE
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Topics: Welding, Heat, Welded joints, Design, Transients (Dynamics), Alloys, Carbon, Cooling, Electric current, Errors
Proceedings Papers

Challenges in Verification of CWM Software to Compute Residual Stress and Distortion in Welds

John Goldak, Mahyar Asadi
Proc. ASME. PVP2010, ASME 2010 Pressure Vessels and Piping Conference: Volume 3, 979-987, July 18–22, 2010
Publisher: American Society of Mechanical Engineers
Paper No: PVP2010-25770
https://doi.org/10.1115/PVP2010-25770
View Paper titled, Challenges in Verification of CWM Software to Compute Residual Stress and Distortion in Welds
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Topics: Computer software, Design, Stress, Temperature, Transients (Dynamics), Uncertainty, Welded joints, Welding
Proceedings Papers

Welding Induced Distortions and Strains of a Built-Up Panel: Experiment and Numerical Validation

Christopher Bayley, John Goldak
Proc. ASME. PVP2010, ASME 2010 Pressure Vessels and Piping Conference: Volume 3, 989-996, July 18–22, 2010
Publisher: American Society of Mechanical Engineers
Paper No: PVP2010-25981
https://doi.org/10.1115/PVP2010-25981
View Paper titled, Welding Induced Distortions and Strains of a Built-Up Panel: Experiment and Numerical Validation
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Topics: Welding, Cladding systems (Building), Finite element methods, Finite element model, Geometry, Metals, Temperature, Temperature profiles, Thermomechanics, Transients (Dynamics)
Journal Articles

Optimization of a Weld Overlay on a Plate Structure

John Goldak, Mahyar Asadi, Jianguo Zhou, Stanislav Tchernov, Dan Downey
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. February 2010, 132(1): 011402.
https://doi.org/10.1115/1.4000511
Published Online: December 9, 2009
View Article titled, Optimization of a Weld Overlay on a Plate Structure
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Topics: Delays, Overlays (Materials engineering), Temperature, Transients (Dynamics), Welded joints, Welding, Optimization, Plates (structures), Stress analysis (Engineering), Maintenance