DESIGN AND ANALYSIS OF TUBE-PLATE JOINTS. FINAL REPORT

The purpose of the first part of the project was to determine the cause(s) of failure in the clamp-pipe joint. The second part was a study of the load capability and mode of failure of the tube-plate joints. A numerical and experimental analyses were done. For the clamp-pipe joint, a Finite Element Model was created and different loads were applied taking into account the presence of the pipe inside the clamp. The experimental analysis simulated the actual static and dynamic loading of the clamp. The dynamic load was applied with a hydraulic actuator and the clamp placed on an MTS machine. Stresses due to contact from static load alone were in excess of yield point. In case of dynamic loading, both numerical and experimental analyses indicated that the clamp would fail in low-cycle fatigue. The computational analysis of the tube-plate joint was done to predict the maximum safe load that the weld can withstand. This was done for 3 cases of weld size and 3 cases of pipe size. In the experimental analysis, the parallel loading cases were found to have a linear relationship to the length of the plate. The mode of failure was shearing of the tube at the base of the weld. In the perpendicular loading case, the plate failed from buckling. The tube experienced considerable plastic strain before buckling occurred.

• Supplemental Notes:
  • This report was presented at the Society of Engineering Science Conference, Gainesville, November 1991.
• Corporate Authors:

  Florida State University, Tallahassee

  College of Engineering, Department of Mechanical Engineering, P.O. Box 2175
  Tallahassee, FL  United States  32310

  Florida Department of Transportation

  Haydon Burns Building, 605 Suwanee Street
  Tallahassee, FL  United States  32301
• Authors:
  • Chandra, N
  • Garmestani, H
• Publication Date: 1992-11

Language

• English

Media Info

• Features: Figures; References;
• Pagination: 141 p.

Subject/Index Terms

• TRT Terms: Buckling; Clamps; Dynamic loads; Failure; Failure analysis; Finite element method; Pipe; Shear stress; Sign supports; Static loads; Stresses; Structural analysis; Tubing; Welds
• Uncontrolled Terms: Contact stress; Shearing; Tube (Pipe)
• Old TRIS Terms: Failure mode; Low cycle fatigue; Static loading; Tube-plate joints
• Subject Areas: Bridges and other structures; Highways; I20: Design and Planning of Transport Infrastructure;

Filing Info

• Accession Number: 00627029
• Record Type: Publication
• Report/Paper Numbers: FL/DOT/RMC/0584-3506, WPI 0510584
• Contract Numbers: C-3506
• Files: TRIS, STATEDOT
• Created Date: Mar 8 1993 12:00AM