A MODEL STUDY FOR VERTICAL TRACK BUCKLING

The paper contains a study of two models which represent the mechanism of vertical buckling of a track when subjected to a mechanical or to a thermal compression force, respectively. The postbuckling equilibrium curves and their stability are discussed and a stability criterion is defined. The effect of various track model parameters upon the buckling load or buckling temperature, are shown. The nonlinear equilibrium equations were then linearized. It was found that the buckling loads, or temperatures, obtained from a linearized analysis have no relevance to the actual values obtained from a nonlinear analysis; the difference in results being substantial for buckling temperatures. (Author)

• Corporate Authors:

  New York University, Bronx

  Department of Aeronautics and Astronautics
  Bronx, NY  United States 
• Authors:
  • Kerr, A D
• Publication Date: 1971-10

Media Info

• Pagination: 31 p.

Subject/Index Terms

• TRT Terms: Buckling; Joints; Mathematical models; Railroad tracks; Safety; Stability (Mechanics); Thermal stresses
• Uncontrolled Terms: Models
• Old TRIS Terms: Joint; Track thermal stress
• Subject Areas: Railroads; Safety and Human Factors;

Filing Info

• Accession Number: 00039288
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NYU-AA-71-31
• Contract Numbers: DOT-FR-10019
• Files: TRIS
• Created Date: Nov 24 1976 12:00AM