On the potential of computational methods and numerical simulation in ice mechanics

This paper deals with the challenge of developing better methods and tools for analysing interaction between sea ice and structures and, in particular, to be able to calculate ice loads on these structures. Ice loads have traditionally been estimated using empirical data and "engineering judgme...

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Published in:IOP conference series. Materials Science and Engineering Vol. 10; no. 1; p. 012102
Main Authors: Bergan, Pål G, Cammaert, Gus, Skeie, Geir, Tharigopula, Venkatapathi
Format: Journal Article
Language:English
Published: Bristol IOP Publishing 01.06.2010
Subjects:
Computation
Computational mechanics
Computer programs
Computer simulation
Creep (materials)
Deformation effects
Elasticity
Empirical analysis
Finite element method
Ice loads
Instability
Materials science
Mathematical models
Mechanics
Numerical methods
Offshore structures
Particle methods (mathematics)
Sea ice
Simulation
Temperature effects
ISSN:1757-899X, 1757-8981, 1757-899X
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Abstract This paper deals with the challenge of developing better methods and tools for analysing interaction between sea ice and structures and, in particular, to be able to calculate ice loads on these structures. Ice loads have traditionally been estimated using empirical data and "engineering judgment". However, it is believed that computational mechanics and advanced computer simulations of ice-structure interaction can play an important role in developing safer and more efficient structures, especially for irregular structural configurations. The paper explains the complexity of ice as a material in computational mechanics terms. Some key words here are large displacements and deformations, multi-body contact mechanics, instabilities, multi-phase materials, inelasticity, time dependency and creep, thermal effects, fracture and crushing, and multi-scale effects. The paper points towards the use of advanced methods like ALE formulations, mesh-less methods, particle methods, XFEM, and multi-domain formulations in order to deal with these challenges. Some examples involving numerical simulation of interaction and loads between level sea ice and offshore structures are presented. It is concluded that computational mechanics may prove to become a very useful tool for analysing structures in ice; however, much research is still needed to achieve satisfactory reliability and versatility of these methods.
AbstractList This paper deals with the challenge of developing better methods and tools for analysing interaction between sea ice and structures and, in particular, to be able to calculate ice loads on these structures. Ice loads have traditionally been estimated using empirical data and "engineering judgment". However, it is believed that computational mechanics and advanced computer simulations of ice-structure interaction can play an important role in developing safer and more efficient structures, especially for irregular structural configurations. The paper explains the complexity of ice as a material in computational mechanics terms. Some key words here are large displacements and deformations, multi-body contact mechanics, instabilities, multi-phase materials, inelasticity, time dependency and creep, thermal effects, fracture and crushing, and multi-scale effects. The paper points towards the use of advanced methods like ALE formulations, mesh-less methods, particle methods, XFEM, and multi-domain formulations in order to deal with these challenges. Some examples involving numerical simulation of interaction and loads between level sea ice and offshore structures are presented. It is concluded that computational mechanics may prove to become a very useful tool for analysing structures in ice; however, much research is still needed to achieve satisfactory reliability and versatility of these methods.
Author Bergan, Pål G
Cammaert, Gus
Skeie, Geir
Tharigopula, Venkatapathi
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Cites_doi 10.1142/S0219876204000204
10.1016/0008-8846(76)90007-7
10.1002/(SICI)1097-0207(19990620)45:5<601::AID-NME598>3.0.CO;2-S
10.1002/nme.1620370205
10.1680/geot.1979.29.1.47
10.1086/112164
10.1093/mnras/181.3.375
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SubjectTerms Computation
Computational mechanics
Computer programs
Computer simulation
Creep (materials)
Deformation effects
Elasticity
Empirical analysis
Finite element method
Ice loads
Instability
Materials science
Mathematical models
Mechanics
Numerical methods
Offshore structures
Particle methods (mathematics)
Sea ice
Simulation
Temperature effects
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