Abstract
Various schemes for the computation of structural reliability in the presence of ergodic wave load processes, ergodic sea state sequences and simple (non-ergodic) random variables such as strength parameters or statistical uncertainties are investigated for both non-deteriorating and deteriorating structural properties. It is assumed that at least conditional outcrossing rates can be computed. It is found that rigorous formulations can require substantial numerical effort even in the context of FORM/SORM computation schemes as they require nested integration. However, for high reliability and not too large variabilities of the non-ergodic variable simpler computation schemes can be used. In the non-deteriorating case use of the ergodic theorem can be made. In the deteriorating case Jensen's inequality can be applied to arrive at simple and appropriate computation schemes.
| Original language | English |
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| Title of host publication | Proceedings of the International Offshore Mechanics and Arctic Engineering Symposium |
| Editors | C. Guedes Soares, C.P. Ellinas, H.C. Rhee, M. Torhaug, M.M. Salama, al et al |
| Number of pages | 6 |
| Volume | 2 |
| Publisher | The American Society of Mechanical Engineers (ASME) |
| Publication date | 1990 |
| Pages | 1-6 |
| Publication status | Published - 1990 |
| Externally published | Yes |
| Event | Proceedings of the Ninth International Conference on Offshore Mechanics and Arctic Engineering 1990. Volume II: Safety and Reliability - Houston, TX, USA Duration: 18 Feb 1990 → 23 Feb 1990 |
Conference
| Conference | Proceedings of the Ninth International Conference on Offshore Mechanics and Arctic Engineering 1990. Volume II: Safety and Reliability |
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| City | Houston, TX, USA |
| Period | 18/02/1990 → 23/02/1990 |
| Sponsor | ASME, New York, NY, USA, Norwegian Soc of Chartered Engineers, Norw, Dansk Ingeniorforening, Den, American Concrete Inst, USA, Energy Rubber Group, USA, et al. |