FATIGUE PERFORMANCE OF DEEP-WATER SUSPENDED PIPING SYSTEMS

Aspects of the inherent statistics related to loads due to lateral moo red vessel movement and steel mechanical properties are investigated i n order to obtain reliable parameters to evaluate the long-term non-li near dynamics response of deep water piping systems, related to fatigu e analysis. The analysis is based on the application of the SN curve a ssociated with the linear cumulative damage rule proposed by Palmgren- Miner. The dynamic stresses acting on the structure are considered wid e band, and statistically represented by a generalized gamma distribut ion. (C) 1997 Elsevier Science Ltd.