ANALYSIS AND CONTROL OF DISTORTION IN WELDED ALUMINUM STRUCTURES

Results of recent investigations at M.I.T. on the subject of analysis and control of distortion in welded aluminum structures are summarized. After a brief overview of the distortion problem as a whole, three kinds of welding distortion are analyzed: longitudinal bending distortion, out-of-plane angular distortion, and buckling distortion. Experimental results are presented and compared with predictions obtained by computer programs developed at M.I.T. Methods for the control of these kinds of distortion are proposed. They include the elastic prestraining method, the differential heating methods, and the application of tensile stresses during welding. It is concluded that the computer programs developed so far can, with proper modifications, be very useful to designers and fabricators in dealing with the distortion problem. They can be part of an integrated system capable of determining the optimum values for the parameters of the problem, taking into account structural hydrodynamics and fabrication considerations.

• Supplemental Notes:
  • Paper presented at SNAME Annual Meeting, November 16-18, 1978.
• Corporate Authors:

  Society of Naval Architects and Marine Engineers

  601 Pavonia Avenue
  Jersey City, NJ  United States  07306-2907
• Authors:
  • Masubuchi, K
  • Papazoglou, V J
• Publication Date: 1978-9

Media Info

• Features: References;
• Pagination: p. 1-23
• Serial:
  • Publication of: Society of Naval Architects and Marine Engineers
  • Publisher: Society of Naval Architects and Marine Engineers

Subject/Index Terms

• TRT Terms: Aluminum; Buckling; Computer programs; Distortion (Structures); Fracture properties; Residual stress; Stresses; Structural analysis; Structures; Thermal stresses; Welding; Welds
• Uncontrolled Terms: Aluminum structures; Aluminum welding
• Old TRIS Terms: Computer programs (Structural analysis); Residual stresses; Weld distortion; Weld stresses
• Subject Areas: Bridges and other structures; Marine Transportation; Materials;

Filing Info

• Accession Number: 00184704
• Record Type: Publication
• Source Agency: Society of Naval Architects and Marine Engineers
• Report/Paper Numbers: Paper No. 3
• Files: TRIS
• Created Date: Jan 13 1979 12:00AM