FINITE ELEMENT ANALYSIS OF OUT-OF-PLANE DISTORTION OF WELDED PANEL STRUCTURES

Two dimensional distortions of a panel structure due to welding are analyzed by the finite element displacement method with an assumption of elastic deformation during welding process. Construction of stiffness matrices relevant to the welding problem is demonstrated for the one and the two dimensional cases. Computer programs are presented. Computations have been carried out using the one dimensional experimental value of unconstrained angular change along the welded edge and its equivalent constrained welding moment as an input to the computer program. These computed results are compared to the particular experimental values. The results indicate that an analytical approach using finite element method can predict the distortion phenomena of a complicated two dimensional structure with a reasonable degree of accuracy. Several recommendations are made concerning further investigations aimed at evaluating relevant value of angular change and equivalent constrained welding moment.

• Corporate Authors:

  Massachusetts Institute of Technology

  Department of Ocean Engineering, 77 Massachusetts Avenue
  Cambridge, MA  United States  02139
• Authors:
  • Dong, S B
• Publication Date: 1972-5

Subject/Index Terms

• TRT Terms: Distortion (Structures); Elastic deformation; Finite element method; Structural plates; Welding; Welds
• Old TRIS Terms: Plate welding; Weld distortion
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00044156
• Record Type: Publication
• Source Agency: Massachusetts Institute of Technology
• Files: TRIS
• Created Date: May 11 1973 12:00AM