Reference: Numerical and experimental studies on temperature and distortion patterns in butt-welded plates
Authors: Bai-Qiao Chen & Marzieh Hashemzadeh & C. Guedes Soares

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The dimensions of the plate are 300×150×4 mm3 (test 1) will be used to verify results.

Coarse mesh will used for faster solution.

Fig. 1 - Geometry and mesh

A Moving heat ACT will be used to define the Goldak heat source model (Double Ellipsoid)

A local coordinate system used as Start Point while welding will move along X-axis of coordinate system.

Fig. 2 - Definition of the Goldak heat source model

Results:

1. Temperature distribution

The red areas represent the melted material in the welding pool with the temperature higher than 1480 degree.

Fig. 3 - Temperature distribution

2. Temperature measured at 3 points with 10, 20 and 30mm away from the weld centreline.

Fig. 4 - Measured temperature

3. Structural response to welding

Fig. 5 - Longitudinal residual stresses of plates after welding

Fig. 6 - Longitudinal residual stresses in transversal sections