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SUMMARY:Modeling of ice failure processes by using discrete element method
  - Arttu  Polojärvi (Aalto University)
DTSTART:20220929T133000Z
DTEND:20220929T140000Z
UID:TALK178418@talks.cam.ac.uk
DESCRIPTION:When an ice sheet moves and interacts with an offshore structu
 re\, it goes through a continuous failure process\, which leads to ice loa
 ds on the structure. Experiments on ice loads are expensive and challengin
 g to perform\, yet ice loads may be a key factor in design. With reliable 
 numerical tools\, detailed insight on the underlying mechanics of ice load
 s can be achieved. Effective numerical tools for ice failure processes are
 \, however\, still fairly scarce. Such tools must be able to describe the 
 failure process of an intact ice sheet\, the ice broken of the sheet\, and
  the formation and deformation of ice rubble. In addition\, in several cas
 es\, three-dimensional modeling is required. This presentation focuses on 
 modeling ice-structure interaction by using three-dimensional combined fin
 ite-discrete element model based on Timoshenko beam lattice and rigid disc
 rete elements. The presentation described how this approach can be verifie
 d and validated\, and on the potential scale- and size-effects in these mo
 dels.
LOCATION:Seminar Room 1\, Newton Institute
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