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Project Number 124
Date of Summary June 30, 1992
Subject Quality Control Test for Platform Weldment Fracture Toughness
Performing Activity National Institute of Standards and Technology, Boulder, Colorado
Principal Investigator Dr. Harry McHenry
Contracting Agency Minerals Management Service
Estimated Completion Complete
Description The objective was to develop a methodology to detect, evaluate, and to control local brittle zones (LBZ) in the construction verification of offshore platforms. LBZ's are regions of brittle microstructure within the heat-affected zones of steel weldments that can initiate brittle fracture. They can also cause a fatigue failure to platforms subject to wind and wave loadings. The major objective was to review the test methods that are currently used to detect, assess, and control LBZ's and to make recommendations for new test methods for fracture control.
Progress Complete

Reports
AA (208 pages, 6,719 KB) File in Adobe's Portable Document Format (PDF) . An International Research Project to Develop Shallow Crack Fracture Mechanics Test. Gordon, J. McGauchy, T. Final Report. Edison Welding Institute. May 1992.

 

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