Consolidated Project Full Scale Testing of Interactive Features for Improved Models

This project addresses pipeline crack growth as influenced by complex operational circumstances by expanding on existing work performed through Pipeline and Hazardous Materials Safety Administration (PHMSA) and Pipeline Research Council International, Inc. (PRCI). Through full scale testing, the team will gather data on mechanical damage interacting with secondary features – gouges (with cracks and micro-cracks), corrosion, and welds. The team will create a database which will be used by others to validate and improve burst and fatigue strength models. The team will also gather experimental data to estimate when cracks in stress corrosion cracking (SCC) colonies coalesce. The project will improve knowledge on the influence of complex loadings on both mechanical damage exposed to environmentally assisted cracking (EAC) or to combined pressure and high axial strains, and on crack growth dynamics of SCC. The primary objectives of the project are to strengthen industry consensus standards and to generate data which will promote new knowledge. The benefits of the program will improve safety and environmental protection by filling critical knowledge gaps on pipeline response to crack growth in mechanical damage and SCC as driven by complex loads and interacting threats.

• Record URL:
  http://primis.phmsa.dot.gov/matrix/prjHome.rdm?prj=555
• Supplemental Notes:
  • Program Information: Pipeline Safety Research, Pipeline Safety

Language

• English

Project

• Status: Active
• Funding: $923000
• Contract Numbers:

  DTPH56-14-H-00002

• 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:

  Smith, Robert

• Performing Organizations:

  Electricore, Incorporated

  27943 Smyth Drive, Suite 105
  Valencia, CA  United States  91355
• Principal Investigators:

  Tiku, Sanjay

• Start Date: 20131230
• Expected Completion Date: 20170331
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Corrosion; Cracking; Deterioration by environmental action; Fatigue (Mechanics); Stress corrosion; Stresses; Testing
• Subject Areas: Environment; Pipelines;

Filing Info

• Accession Number: 01577976
• Record Type: Research project
• Source Agency: Department of Transportation
• Contract Numbers: DTPH56-14-H-00002
• Files: RIP, USDOT
• Created Date: Oct 7 2015 4:28PM