Skip Navigation Minerals Management Service Minerals Management Service MMS Home pagesSearchMMS Topic IndexAbout MMSWhat’s NewOffshore Energy and Minerals Management United States Department of the Interior
TA&R Home PageTA&R International Home PagesTA&R Oil Spill Research HomeTA&R Research Projects HomeTA&R Workshops HomeTA&R Safety Home
Project Number 277
Date of Summary November 01, 1999
Subject Structural Integrity Assessment and Repair of Corrosion-Damaged Offshore Platform Tubulars
Performing Activity Lehigh University
Principal Investigator James M. Ricles
Contracting Agency Minerals Management Service
Estimated Completion August 2000
Description This is a Joint Industry Project (JIP), to
1) study the axial load-deformation response of patch-corroded steel tubular members and to evaluate the effects of member diameter-to- thickness ratio, corrosion profile, and load history has on member behavior;
2) develop, evaluate, and calibrate analytical models and computational methods based on the experimental results for prediction (change to) predicting the response of corroded steel tubular members;
3) determine the low-cycle and high-cycle fatigue resistance of machined and naturally corroded tubular members;
4) develop repair methodologies using advanced fiber composite material; and
5) demonstrate the performance of the repair under monotonic loading, low-cycle plastic loading such as in a severe storm or an earthquake
Progress The project is complete. Analytical models developed at Lehigh have been fairly successful in predicting the capacity of the corroded members tested. The results were presented at the Corrosion Workshop in February 1999.

Reports
AA (184 pages) PDF Padula, Joseph, A., A Simplified Method for Estimating the Load-Shortening Behavior of Damaged Tubular Columns, Lehigh University, May 1999.
AB (181 pages) PDF Ostapenko, Alexis and Gulec, Onur, Tubular Columns with Multiple Corrosion Patches, ATLSS Report No. 99-15, Lehigh University, December 1999.
AC (288 pages) PDF Paterson, Duncan. Ricles, James M. Structural Integrity Assessment of Corrosion-Damages Offshore Tubular Braces Subjected to Inelastic Cyclic Loading. Lehigh University, May 2001.

 

Privacy | Disclaimers | Accessibility | Topic Index | FOIA

Last Updated: 07/22/2008, 06:29 PM