Abstract
The paper covers the topic of time dependent reliability for fatigue assessment of engineering
structures. As fatigue can be seen as a cumulative degradation process, time dependency has to be handled
differently from failures caused by extreme impacts. Target reliability levels given in codes usually refer to
the failure probability of a structure within a given time period, the so called reference period. In practical
examples of fatigue assessment the consideration of the time period is often neglected, which leads to results
not comparable with the target reliability levels given in codes. Also in 2015 an updated version of ISO 2394
(ISO 2015) code was published adding guidance for consideration of time-dependent fatigue assessment which
will also be briefly discussed here.
The consideration of time-dependency in this paper may not represent a novelty in the field of reliability analysis
and employs fundamental methods. Still, as the topic is frequently ignored in probabilistic fatigue analysis
examples, a short discussion might be of interest. The presented paper will (a) discuss the consideration of
reference periods with failures caused by accumulating deterioration, (b) show comparative calculations based
on a simple case study and (c) discuss the results.
Original language | English |
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Title of host publication | Life-Cycle of Engineering Systems: Emphasis on Sustainable Civil Infrastructure |
Publication status | Published - 2016 |
Event | IALCCE Konferenz 2016 - Duration: 16 Oct 2016 → 19 Oct 2016 |
Conference
Conference | IALCCE Konferenz 2016 |
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Period | 16/10/16 → 19/10/16 |
Research Field
- Former Research Field - Mobility Systems