Feasibility of Special Trackwork Inspection Using Ultrasonics [Research Results]

Details

• Creators:
  Wilson, Robert ; Poudel, Anish
• Corporate Creators:
  Association of American Railroads. Transportation Technology Center, Inc. (TTCI)
• Corporate Contributors:
  United States. Department of Transportation. Federal Railroad Administration. Office of Research and Development
• Subject/TRT Terms:
  • Inspection
  • Maintenance of way
  • Railroad engineering
  • Railroad tracks
  • Railroad transportation
  • Ultrasonic tests
  • Frogs (Railroads)
  • Diamond interchanges
  • Microstructure
  • Coarse grained materials
  More +
• Publication/ Report Number:
  RR 22-25
• Resource Type:
  Brief
• Geographical Coverage:
  United States
• Edition:
  Research Results
• Corporate Publisher:
  United States. Department of Transportation. Federal Railroad Administration
• Abstract:
  The Federal Railroad Administration (FRA) co-sponsored Transportation Technology Center, Inc. (TTCI) on a trackwork inspection effort scheduled for completion in September 2022. This research demonstrated the potential for the low-frequency ultrasonic testing (UT) nondestructive evaluation (NDE) method to characterize internal flaws in crossing. First, TTCI fabricated a test sample from the crossing diamond that contained drilled holes (reflectors) at different depths. Second, microstructural analysis and microhardness measurements characterized its microstructural and material properties. And third, researchers applied a low-frequency UT method to detect the reflectors in the test sample.
• Format:
  PDF
• Funding:
  DTFR5311D00008L,TO 693JJ620F000049
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/64412/dot_64412_DS1.pdf
• File Type:
  [PDF - 472.58 KB]
• Collection(s):
  Federal Railroad Administration
• Main Document Checksum:
  urn:sha-512:9762f073485ff552698727c5623305665cccceba5b0ad87943519f93eb17b22d55e39444afdad3315c3d0f5bbabdd0dfd69fb90bd48b42a7ac5b6e7a0877423f