INFLUENCE OF NEUTRAL AXIAL STRESS ON YIELD AND COLLAPSE OF PIPE

Axial stress with zero stress as datum is conventionally used in calculating the influence of tension or compression on yield or collapse of pipe. In this paper, zero stress datum is replaced by "neutral stress datum." This results in a simpler curve of plasticity, namely a circle, instead of the conventional skewed ellipse. Although equations based on neutral axial stress datum are simpler than equations based on zero axial stress datum, the results of the two methods are equivalent for yielding. On the other hand, the results are different for collapse. Experimental collapse pressures are closer to those calculated on the basis of neutral axial stress datum. Means for making allowance for pressures both inside and outside the pipe are given in the paper. Radial stress is taken into consideration, and, therefore, the treatment is triaxial. /AUTHOR/

• Corporate Authors:

  American Society of Mechanical Engineers

  Two Park Avenue
  New York, NY  United States  10016-5990
• Authors:
  • Lubinski, A
• Publication Date: 1975-5

Media Info

• Features: Appendices; Figures; References;
• Pagination: p. 400-407
• Serial:
  • ASME Transactions
  • Volume: 97B
  • Issue Number: 2
  • Publisher: American Society of Mechanical Engineers

Subject/Index Terms

• TRT Terms: Axial loads; Collapse; Equations; Pipe; Plasticity; Pressure; Radials; Stresses
• Uncontrolled Terms: Axial stress; Triaxial stress
• Old TRIS Terms: Radial stress; Yield
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00097626
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 29 1975 12:00AM