DISTORTION IN WELDED ALUMINUM STRUCTURES

The study develops two analytical models for the prediction of strain resulting from elastic prestraining of a plate. Elastic prestraining is a powerful technique used to reduce angular distortion of a welded built-up section. A simple welded panel structure is used as a model to study problems of distortion which are inherent to welding aluminum. Three thicknesses of aluminum, 1/4, 3/16 and 1/8, are used for the panels. These three thicknesses are the ones most likely to exhibit distortion on the completion of fabrication. The experimental data for temperature of the plate at the gauge locations is compared with the one- dimensional prediction program's values. The effects of clamping on the residual stress levels is studied.

• Corporate Authors:

  Massachusetts Institute of Technology

  Department of Ocean Engineering, 77 Massachusetts Avenue
  Cambridge, MA  United States  02139
• Authors:
  • Beauchamp, D G
• Publication Date: 1976-5

Subject/Index Terms

• TRT Terms: Aluminum; Distortion (Structures); Structural analysis; Welding; Welds
• Uncontrolled Terms: Aluminum welding
• Old TRIS Terms: Weld distortion
• Subject Areas: Bridges and other structures; Marine Transportation;

Filing Info

• Accession Number: 00142348
• Record Type: Publication
• Source Agency: Massachusetts Institute of Technology
• Report/Paper Numbers: MS Thesis
• Files: TRIS
• Created Date: Nov 23 1976 12:00AM