| 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) |
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) |
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) |
Crooker, T. W., Environmental
Cracking in Structural Alloys, ASTM Standardization News. November 1988. |
| AD (10 pages) |
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) |
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) |
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) |
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) |
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) |
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) |
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. |