Origin and application of the pressure-area relationship in ice loads on ships
- đ¤ Speaker: Kaj Riska (Aalto University School of Science and Technology (TKK))
- đ Date & Time: Monday 26 September 2022, 10:00 - 10:45
- đ Venue: Seminar Room 1, Newton Institute
Abstract
Ice action on offshore structures and ships is described commonly by the so-called pressure-area relationship. This describes the average ice contact pressure on a prescribed area, pressure that is assumed to be uniform. Several reasons for this empirical observation have been proposed; non-simultaneous failure of ice, size effect in strength (Weibull effect) and a specific pressure distribution. These are described and reviewed in the presentation. Further the pressure-area relationship has been used both in describing the design i.e. maximum forces and also in describing the forces during ice indentation in a contact situation. Is the same relationship applicable in both cases? Finally there is not a clear agreement on how to use the relationship in design. Some suggestions for this are given.
Series This talk is part of the Isaac Newton Institute Seminar Series series.
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Kaj Riska (Aalto University School of Science and Technology (TKK))
Monday 26 September 2022, 10:00-10:45