Fatigue Crack Initiation Properties of Rail Steels

Details

• Creators:
  Rice, Richard C. ; Broek, D.
• Corporate Creators:
  John A. Volpe National Transportation Systems Center, (U.S.)
• Corporate Contributors:
  Battelle Memorial Institute. Columbus Laboratories ; United States. Federal Railroad Administration
• Subject/TRT Terms:
  Cracking Fatigue (Mechanics) Laboratory Tests Mathematical Models Rail (Railroads) Rail Steel Stress Ratio
• Publication/ Report Number:
  FRA/ORD-82-05, DOT-TSC-FRA-81-22
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Federal Railroad Administration
• NTL Classification:
  AGR-INFRASTRUCTURE-Railroads ; NTL-RAIL TRANSPORTATION-RAIL TRANSPORTATION ; NTL-RAIL TRANSPORTATION-Rail Safety ; NTL-SAFETY AND SECURITY-Vehicle Design ; NTL-SAFETY AND SECURITY-Rail Safety ; NTL-SAFETY AND SECURITY-SAFETY AND SECURITY
• Abstract:
  Fatigue crack initiation properties of rail-steels were determined experimentally. One new and four used rail steels were investigated. The effects of the following parameters were studied: stress ratio (ratio of minimum to maximum stress in a cycle), control mode, specimen orientation, and periodic overstrain. Both constant and variable strain amplitude experiments were performed. A model was developed, employing an equivalent strain parameter, which allowed prediction of variable amplitude fatigue crack initiation within the basic data variability.
• Format:
  PDF
• Collection(s):
  Volpe Center
• Main Document Checksum:
  urn:sha256:b83869162b269c84be1913908960f95e2c4d41cb10b8d2574000599f0f968656
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/11765/dot_11765_DS1.pdf
• File Type:
  [PDF - 2.21 MB ]