Abstract
In the present investigation, the fatigue life of offshore steel
structures in high-strength steel is studied. The material used
has a yield stress of 800-1000 MPa, and high weldability and
toughness properties. Of special interest is the fatigue life
under a realistic stochastic loading. In the experimental part of
the investigation, fatigue test series have been carried through
on both full-scale tubular joints and smaller welded plate test
specimens, in high-strength steel as well as in conventional
offshore structural steel. The present document gives a summary of
the main results presented in two recent research reports, Refs.
15 and 16, from these investigations.A comparison between constant
amplitude and variable amplitude fatigue test results shows
shorter fatigue lives in variable amplitude loading than should be
expected from the linear fatigue damage accumulation formula.
Furthermore, in general longer fatigue lives were obtained for the
test specimens in high-strength steel than those obtained in
corresponding tests on joints in conventional offshore structural
steel.
| Original language | English |
|---|---|
| Title of host publication | An Investigation on Fatigue in High-Strength Steel Offshore Structures |
| Place of Publication | Paris, Frankrig |
| Publisher | International Institute of Welding |
| Publication date | 1997 |
| Pages | 1-22 |
| Publication status | Published - 1997 |
| Event | 50th Annual Assembly International Institute of Welding - San Francisco, CA, United States Duration: 13 Jul 1997 → 18 Jul 1997 |
Conference
| Conference | 50th Annual Assembly International Institute of Welding |
|---|---|
| Country/Territory | United States |
| City | San Francisco, CA |
| Period | 13/07/1997 → 18/07/1997 |
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