Limit mechanisms for ice loads: FEM-DEM and simplified load models
Visualitza/Obre
Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/186389
Tipus de documentText en actes de congrés
Data publicació2019
EditorCIMNE
Condicions d'accésAccés obert
Tots els drets reservats. Aquesta obra està protegida pels drets de propietat intel·lectual i
industrial corresponents. Sense perjudici de les exempcions legals existents, queda prohibida la seva
reproducció, distribució, comunicació pública o transformació sense l'autorització del titular dels drets
Abstract
This work summarizes our recent findings on mechanisms and limits for the ice loads on wide inclined Arctic marine structures, like drilling platforms or harbour structures. The fresults presented are based on hundreds of two-dimensional combined finite-discrete element method (FEM-DEM) simulations on ice-structure interaction pro- cess. In such processes, a floating sea ice cover, driven by winds and currents, fails against a structure and fragments into a myriad of ice blocks which interact with each other and the structure. The ice load is the end result of this interaction process. Using the simu- lation data, we have studied the loading process, analysed the
statistic of ice loads, and recently introduced a buckling model [1] and extended it to a simple probabilistic limit load model and algorithm [2], which predict the peak ice load values with good accuracy. These models capture and quantify the effect of two factors that limit the values of peak ice loads in FEM-DEM simulations: The buckling of force chains and local ice crush- ing in ice-to-ice contacts. The work here describes the models and demonstrates their applicability in the analysis of ice-structure interaction.
ISBN978-84-121101-1-1
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
Particles_2019-02-Limit mechanisms for ice.pdf | 519,7Kb | Visualitza/Obre |