Development and application of rail defect fracture models to assess remedial actions

Details

• Creators:
  Mayville, R A ; Stringfellow, R G
• Corporate Creators:
  Gallagher, Susan ; John A. Volpe National Transportation Systems Center (U.S.) ; United States. Department of Transportation. Federal Railroad Administration
• Subject/TRT Terms:
  • Cracking
  • Defects
  • Dynamic structural analysis
  • Finite element method
  • Fracture mechanics
  • Rail (Railroads)
  • Static structural analysis
  • Structural analysis
  • Finite element analysis
  • Rail cracks
  More +
• Publication/ Report Number:
  DOT-FRA-ORD-93-33 ; DOT-VNTSC-FRA-93-12
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final report; June 1991 - January 1993
• Corporate Publisher:
  United States. Department of Transportation. Federal Railroad Administration
• Abstract:
  The fracture mechanics models were refined for two types of rail defects - the bolt hole crack and the vertical split head. Beam-type finite element analysis was conducted to determine the effects of joint bar looseness, rail height mismatch and train speed on the static and dynamic components of the crack driving force for the bolt hole crack. Both two- and three-dimensional finite element analyses were conducted to determine the Modes I and II stress intensities for a kinked vertical split head crack. The results from these analyses were reviewed to determine their implication on remedial actions.
• Format:
  PDF
• Funding:
  RR328/R3026 ; DTRS-57-89-D-00007 ; VA1032
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/8864/dot_8864_DS1.pdf
• File Type:
  [PDF - 1.84 MB]
• Collection(s):
  Volpe Center ; Federal Railroad Administration
• Main Document Checksum:
  urn:sha-512:2a2726acd01abe26d7e166bf8c550d810ea523b5e7b6fa6cd8329f8d4b31d1e60cbf0bffe654a99f3fb95b96584b414c578df6ec724ada0a41dffe7518d0d51d