Finite element modeling of multipass GMA welds in steel plates

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Distortions from gas metal arc (GMA) multipass welds of thick steel plates were measured in experiments and calculated using finite element analysis. Two- and three-dimensional finite element simulations were compared with the experimentally measured in-plane distortions in a 2-3/4 in. thick steel plate. Thermal analyses were performed using 2D models of the weld cross-section. These temperature histories were used for 2D and 3D mechanical analyses. Data for verification of thermal analyses included weld cross-sections, weld pool crater shape from power-off tests, and embedded and surface thermocouple temperature histories. Mechanical analyses were verified using caliper measurements of shrinkage transverse to the ... continued below

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12 p.

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Creator: Unknown. December 1, 1995.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

Distortions from gas metal arc (GMA) multipass welds of thick steel plates were measured in experiments and calculated using finite element analysis. Two- and three-dimensional finite element simulations were compared with the experimentally measured in-plane distortions in a 2-3/4 in. thick steel plate. Thermal analyses were performed using 2D models of the weld cross-section. These temperature histories were used for 2D and 3D mechanical analyses. Data for verification of thermal analyses included weld cross-sections, weld pool crater shape from power-off tests, and embedded and surface thermocouple temperature histories. Mechanical analyses were verified using caliper measurements of shrinkage transverse to the weld and strain gage measurements. Calculated in-plane shrinkage from the 3D model for 4 passes compared well with caliper measurements of a test specimen`s distortion. Two-dimensional mechanical analyses were not capable of predicting the accumulation of shrinkage occurring after the first pass.

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12 p.

Notes

OSTI as DE96002487

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  • 4. international conference on trends in welding research, Gatlinburg, TN (United States), 5-9 Jun 1995

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  • Other: DE96002487
  • Report No.: SAND--95-8720C
  • Report No.: CONF-950682--7
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 135165
  • Archival Resource Key: ark:/67531/metadc625131

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • December 1, 1995

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  • June 16, 2015, 7:43 a.m.

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  • April 14, 2016, 7:40 p.m.

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Finite element modeling of multipass GMA welds in steel plates, article, December 1, 1995; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc625131/: accessed December 11, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.