Digital Imaging of Pipeline Mechanical Damage and Residual Stress

This project addresses the need for a more reliable means of characterizing pipeline mechanical damage through application of digital eddy current imaging. JENTEK's patented Meandering Winding Magnetometer (MWM) arrays have demonstrated capability to use lift-off measurements to profile the surface of a dented area, while MWM-Array measured magnetic permeability can be correlated with residual stresses around and within the mechanical damage site. Successful completion of this program will result in enhanced remaining life prediction capability for pipelines suffering mechanical damage and a reliable decision support tool for pipeline owners and operators. This will enable operators to avoid overly conservative decisions while enhancing pipeline safety.

• Record URL:
  http://primis.phmsa.dot.gov/matrix/prjHome.rdm?prj=292
• Supplemental Notes:
  • Program Information: Pipeline Safety Research, Pipeline Safety. Link to project report: http://ntl.bts.gov/lib/46000/46200/46295/FilGet.pdf

Language

• English

Project

• Status: Completed
• Funding: $99975.00
• Contract Numbers:

  DTRT57-09-C-10046

• Sponsor Organizations:

  Pipeline and Hazardous Materials Safety Administration

  U.S. Department of Transportation
  East Building, 2nd Floor 1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Project Managers:

  Merritt, James

• Performing Organizations:

  JENTEK Sensors, Incorporated

  110-1 Clematis Avenue
  Waltham, MA  United States  02453
• Principal Investigators:

  Goldfine, Neil

• Start Date: 20090814
• Expected Completion Date: 0
• Actual Completion Date: 20100226
• Source Data: RiP Project 35270

Subject/Index Terms

• TRT Terms: Eddy currents; Magnetometer detectors; Mechanical failure; Permeability; Pipeline safety; Residual stress; Service life
• Uncontrolled Terms: Digital images
• Subject Areas: Maintenance and Preservation; Pipelines; Safety and Human Factors;

Filing Info

• Accession Number: 01573228
• Record Type: Research project
• Source Agency: Department of Transportation
• Contract Numbers: DTRT57-09-C-10046
• Files: UTC, RIP
• Created Date: Aug 15 2015 1:01AM