Print Email Facebook Twitter The effect of hydrodynamics on the bending failure of level ice Title The effect of hydrodynamics on the bending failure of level ice Author Keijdener, C. (TU Delft Offshore Engineering) Hendrikse, H. (TU Delft Offshore Engineering) Metrikine, A. (TU Delft Offshore Engineering; TU Delft Engineering Structures) Department Engineering Structures Date 2018-04-28 Abstract In this paper, the bending failure of level ice caused by the interaction with a downward sloping structure is studied in 2D. The focus is on the effect of hydrodynamics on the interaction. This study is done by comparing the predictions of a model that includes both hydrostatics and hydrodynamics with one that only includes hydrostatics.For both models, the ice is modeled as a semi-infinite Kirchhoff-Love plate that is assumed to float on an infinitely wide fluid layer of finite depth. The fluid pressure exerted on the ice is governed by the nonlinear Bernoulli equation. The ice moves towards the structure, impacts with its downward sloping hull, slides down the structure and ultimately fails in downward bending. Validation of this model shows good agreement with experimental data.It is shown that the nonlinear term in the Bernoulli equation has a negligible effect on the interaction and can be ignored. The effect of hydrodynamics can thus be attributed to the linear part of the hydrodynamic pressure.The effect of the rotational inertia of the ice and axial compression is negligible as well. At low velocities, ice fails in a quasi-static manner, while at higher velocities, the failure takes place shortly after the contact initiation. Thetransition between these two regimes is marked by a transition velocity that is significantly lower for the hydrodynamic model than for the hydrostatic one. Because of this, it is not desirable to use the hydrostatic model for velocities above the transition velocity. Subject Ice-structure interactionLevel iceHydrodynamicsBending failureBreaking length To reference this document use: http://resolver.tudelft.nl/uuid:d45ddd1f-a57a-4b44-9a9f-19ac61fa289f DOI https://doi.org/10.1016/j.coldregions.2018.04.019 Embargo date 2022-08-09 ISSN 0165-232X Source Cold Regions Science and Technology, 153, 106-119 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2018 C. Keijdener, H. Hendrikse, A. Metrikine Files PDF 1_s2.0_S0165232X18300296_main.pdf 1.4 MB Close viewer /islandora/object/uuid:d45ddd1f-a57a-4b44-9a9f-19ac61fa289f/datastream/OBJ/view