Remaining Strength of Corroded Pipe Under Secondary (Biaxial) Loading

The objective of this project is to develop simplified guidance to assess corrosion metal loss defects in pipelines that are subjected to external loadings in service. Ongoing analytical work is developing simplified rules and methods to account for the effects of secondary loads on the behavior of corroded pipelines, avoiding the need to resort to complex numerical analysis using non-linear finite element analysis (FEA). Extension of this analytical work to address the full range of combined pressure/secondary loading and pipe/defect geometries, and validation of the simplified rules by conducting selected full-scale tests will provide the necessary information on which to base modifications to extend the current guidance beyond pressure-only loading. This work will also address buckling.

• Record URL:
  http://primis.phmsa.dot.gov/matrix/prjHome.rdm?prj=174
• Supplemental Notes:
  • Program Information: Pipeline Safety Research, Pipeline Safety

Language

• English

Project

• Status: Completed
• Funding: $203358.00
• Contract Numbers:

  DTPH56-05-T-0003

• 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:

  Nanney, Steve

• Performing Organizations:

  Electricore, Incorporated

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

  Piazza, Mark

• Start Date: 20050401
• Expected Completion Date: 0
• Actual Completion Date: 20101221
• Source Data: RiP Project 35382

Subject/Index Terms

• TRT Terms: Corrosion; Finite element method; Guidelines; Load factor; Pressure; Prototype tests
• Uncontrolled Terms: Biaxial loading
• Subject Areas: Maintenance and Preservation; Pipelines;

Filing Info

• Accession Number: 01493806
• Record Type: Research project
• Source Agency: Department of Transportation
• Contract Numbers: DTPH56-05-T-0003
• Files: RIP
• Created Date: Sep 24 2013 1:00AM