Acoustic Emission Equipment for Infrastructure Monitoring

Details

• Creators:
  Shield, Carol K.
• Corporate Creators:
  University of Minnesota. Dept. of Civil Engineering
• Corporate Contributors:
  Minnesota. Department of Transportation
• Subject/TRT Terms:
  • Acoustic emission
  • Structural health monitoring
  • Girders
  • Oscilloscopes
  • Acoustic emissions
  • Bridge girders
  • Digital oscilloscopes
• Publication/ Report Number:
  MN/RC-1999-18
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  Minnesota. Department of Transportation
• Abstract:
  This project details the development and evaluation of an acoustic emission (AE) system for monitoring large scale structures, both in the lab and in the field. The system consists of acoustic emission sensors, preamplifiers, filters, an AE monitor, and a digital oscilloscope. The system has been applied successfully to both steel and concrete structures and used to detect brittle fracture and low-cycle fatigue failures in welded steel joints and crack propagation in cover plated rolled bridge girders, in the field and in the laboratory. The AE system detected initial cracking during the flexural crack testing of two high-strength concrete prestressed bridge girders. The acoustic emission monitoring of bond tests also provided insight into the behavior of the bond between the glass fiber reinforced polymer rebar and concrete.
• Format:
  PDF
• Funding:
  (c) 74359 ; TOC #198
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/55984/dot_55984_DS1.pdf
• File Type:
  [PDF - 616.13 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:e6390742ada330b70033a2a2395c797ad727843a0438272249d67dc94fc74e1e