Acoustic Emission Monitoring of North East Trunnion Shaft on Oregon DOT Bridge 1377A I-5 Over the Columbia River, Portland, Oregon

Details

• Creators:
  Prine, David W. ; Oleksy, Jerome E.
• Corporate Creators:
  Northwestern University (Evanston, Ill.)
• Subject/TRT Terms:
  • Acoustic emission tests
  • Monitoring
  • Bridges
  • Cracking
  • Columbia River, Portland, Oregon
  • Fatigue cracks
  • Noise
• Publication/ Report Number:
  ITI Technical Report No.18
• Resource Type:
  Tech Report
• Geographical Coverage:
  Portland (Oregon) ; United States
• Corporate Publisher:
  Northwestern University (Evanston, Ill.). Infrastructure Technology Institute
• NTL Classification:
  NTL-HIGHWAY/ROAD TRANSPORTATION-Bridges and Structures
• Abstract:
  Acoustic emission monitoring has been used to provide additional confirmation that ultrasonic indications in a forged trunnion shaft are active fatigue cracks. An advanced all digital AE monitoring system developed by Vallen Systeme GmbH of Icking Germany was applied in a setup that used linear location and guard channels. A unique signal processing approach that combines both spatial and temporal clustering was used to eliminate the large amount of ; background noise present during the tests.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/48791/dot_48791_DS1.pdf
• File Type:
  [PDF - 1.07 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:b51888a4f7c864d86ac2bc9e1003efbe646f39e76d7b505f75ecb6cf6b08baae