FATIGUE ANALYSIS FOR DEEPWATER FIXED-BOTTOM PLATFORMS

As the offshore oil industry moves into deeper water, fixed-bottom platforms will be found to exhibit dynamic amplification of wave-induced response. The resulting dynamic loads will have a significant effect on the cyclic stresses used in a fatigue analysis. State-of-the-art fatigue analyses require some sort of stress-history curve, which is extracted from the dynamic response indicated by a mathematical model of a platform. The mathematical model of the platform is subjected to finite length synthetic wave profiles representing operational and severe sea states for a given location.

• Supplemental Notes:
  • Presented at the 6th Annual Offshore Technology Conference, Houston, Texas, May 6-8, 1974. Requests for this paper should be directed to David L. Riley, Offshore Technology Conference.
• Corporate Authors:

  Offshore Technology Conference

  6200 North Central Expressway
  Dallas, TX  United States  45206
• Authors:
  • Maddox, N R
• Conference:
  • Presented at the 6th Offshore Technology Conference
  • Location: Houston Texas
  • Date: 1974-5-6 to 1974-5-8
• Publication Date: 1974-5

Media Info

• Features: References;
• Pagination: p. 191-203
• Serial:
  • Volume: 2

Subject/Index Terms

• TRT Terms: Force; Loads; Mechanical fatigue; Offshore platforms; Waves
• Old TRIS Terms: Fatigue stress; Wave forces on structures; Wave induced loads
• Subject Areas: Bridges and other structures; Marine Transportation; Materials; Vehicles and Equipment;

Filing Info

• Accession Number: 00072901
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: OTC #2051 Paper
• Files: TRIS
• Created Date: Jan 16 1975 12:00AM