COMPARISON OF WEB STRESSES IN 131-LB RE AND 140 PS - (PENNSYLVANIA) SECTIONS

Report is made of field measurement of stresses made by the Pennsylvania Railroad in 131-lb. RE and 140 PS sections of rail. The 140 rail section is designed to compensate for the inadequacy of the 131 section, and the two sections are compared. Stresses reported include the maximum stress in the web in a vertical plane occurring under a concentrated load. It is noted that in the service tests, made under conditions where rails were failing, the maximum stress is always found on the gage side of the low rail and that is where fatigue cracks develop. It is concluded from these service measurements that the laboratory basis of design of the new section is sound and that the laboratory stress measurements forecast the reduction in service stress with satisfactory accuracy.

• Corporate Authors:

  American Railway Engineering Association

  59 East Van Buren Street
  Chicago, IL  United States  60605
• Publication Date: 1949

Media Info

• Features: Figures; Tables;
• Pagination: p. 558-566
• Serial:
  • AREA BULLETIN
  • Volume: 50
  • Publisher: American Railway Engineering Association

Subject/Index Terms

• TRT Terms: Railroad rails; Stresses; Structural design
• Uncontrolled Terms: Fatigue analysis
• Old TRIS Terms: Rail design; Rail stress; Web defects (Rails)
• Subject Areas: Design; Railroads;

Filing Info

• Accession Number: 00052461
• Record Type: Publication
• Source Agency: Association of American Railroads
• Report/Paper Numbers: Proceeding
• Files: TRIS
• Created Date: Jul 15 1976 12:00AM