By getting the data from an ordered set of Gauss points on the flow line of a material point that passes near the weld pool, the evolution of the stress/strain tensor fields is visualized. The principal plastic strain tensor, principal deviatoric stress tensor, hydrostatic stress and temperature are visualized. This is done for three weld distortion mitigation strategies: i) pre-bending by applying a prescribed displacement, ii) applying a tensile load to the weld and iii) applying side heaters to the weld. Visualizing the evolution of the principal stress and strain vectors gives interesting insight into the mechanics of plastic deformation near a weld pool.
- Pressure Vessels and Piping Division
The Evolution of Stress and Strain Tensors in Welds With Mitigation of Residual Stress and Distortion
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Goldak, JA, & Asadi, M. "The Evolution of Stress and Strain Tensors in Welds With Mitigation of Residual Stress and Distortion." Proceedings of the ASME 2011 Pressure Vessels and Piping Conference. Volume 6: Materials and Fabrication, Parts A and B. Baltimore, Maryland, USA. July 17–21, 2011. pp. 443-453. ASME. https://doi.org/10.1115/PVP2011-57957
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