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Project Number 63
Date of Summary March 31, 1987
Subject Assessment Criteria for Environmental Cracking
Performing Activity Naval Research Laboratory
Principal Investigator Dr. Thomas W. Crooker
Contracting Agency Minerals Management Service
Estimated Completion Complete
Description To examine structural integrity questions arising from the proposed use of high-strength steels in tension leg platforms tension members. Environmental cracking (stress- corrosion cracking and corrosion-fatigue crack growth) will be the major focus of the project. The results will provide engineering criteria relating threshold conditions for the onset of environmental cracking in sea water to design stresses, defect sizes, and cathodic protection parameters for specific classes of high-strength steels.
Progress Complete. Discussions will be conducted with the Naval Research Laboratory on the possibility of conducting additional tests for the ripple-load conditions.
Reports
AA (24 pages) File in Adobe's Portable Document Format (PDF) . Crooker, T. W., Hauser, J. A., II, Assessment Criteria for Environmental Cracking of High Strength Steels in Sea Water NRL Memorandum Report 5035, Naval Research Laboratory, Washington, D.C., March 18, 1983.
AB (9 pages) File in Adobe's Portable Document Format (PDF) . Hauser, J. A., Crooker, T. W., Stress-Corrosion Cracking Results on Four High-Strength Steels in Natural Sea Water, Letter Report, Naval Research Laboratory, Washington, D.C., October 4, 1984.
AC (11 pages) File in Adobe's Portable Document Format (PDF) . Crooker, T. W., Environmental Cracking in Structural Alloys, ASTM Standardization News. November 1988.
AD (10 pages) File in Adobe's Portable Document Format (PDF) . Crooker, T. W., Stress-Corrosion Cracking Test Results on Nine Low-Alloy Steels in Natural Seawater, Letter Report, Naval Research Laboratory, Washington, D.C., June 11, 1985.
AE (17 pages) File in Adobe's Portable Document Format (PDF) . Hauser, J. A., Crooker, T. W., Influence of Small-Amplitude Cyclic Loading on Stress-Corrosion Cracking of High-Strength Steels in Salt Water, Symposium on Predictive Capabilities in Environmentally Assisted Cracking, ASME Winter Meeting, Miami, Florida, November 17-20, 1985.
AF (22 pages) File in Adobe's Portable Document Format (PDF) . Hauser, J. A., Crooker, T. W., A Literature Review on the Influence of Small-Amplitude Cyclic Loading on Stress-Corrosion Cracking in Alloys, NRL Memorandum Report 5763, Naval Research Laboratory, Washington, D.C., April 3, 1986.
AG (16 pages) File in Adobe's Portable Document Format (PDF) . Hauser, J. A., Crooker, T. W., An Investigation of Stress- Corrosion Cracking Susceptibility in Candidate Steels for Tension Leg Platform Tendons, NRL Memorandum Report 5773, Naval Research Laboratory, Washington, D.C., April 24, 1986.
AH (10 pages) File in Adobe's Portable Document Format (PDF) . Hauser, J. A., Crooker, T. W., Progress Report on An Investigation of Stress-Corrosion Cracking Susceptibility in Candidate Steels for Tension Leg Platform Tendons, NRL Letter Report, Naval Research Laboratory, Washington, D.C., August 13, 1986.
AI (4 pages) File in Adobe's Portable Document Format (PDF) . Hauser, J. A., Crooker, T. W., Progress Report on An Investigation of Stress-Corrosion Cracking Susceptibility in Candidate Steels for Tension Leg Platform Tendons, NRL Letter Report, Naval Research Laboratory, Washington, D. C. October 21, 1986.
AJ (12 pages) File in Adobe's Portable Document Format (PDF) . Crooker, T. W., Hauser, J. A., Bayles, R. A., Ripple-Loading Effects on Stress-Corrosion Cracking in Steels, International Conference on Environmental Degradation of Engineering Materials - III, The Pennsylvania State University, April 13-17, 1987.
 

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