NUMERICAL MODELLING OF FORCES, STRESSES AND BREAKAGES OF CONCRETE ARMOUR UNITS
No. 34 (2014), Coastal Structures
No. 34 (2014)

NUMERICAL MODELLING OF FORCES, STRESSES AND BREAKAGES OF CONCRETE ARMOUR UNITS

Coastal Structures
https://doi.org/10.9753/icce.v34.structures.78
Published 2014-12-02
John-Paul Latham
AMCG, Department of Earth Science and Engineering, Imperiual College London
Jiansheng Xiang
Imperial College London
Eleni Anastasaki
Imperial College London
Liwei Guo
Imperial College London
Nikolaos Karantzoulis
Imperial College London
Axelle Vire
Faculty of Aerospace Engineering, Delft University of Technology
Christopher Pain
Imperial College London
Image of numerically created Accropode II Armour lLayer showing finite element mesh
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Keywords

rubble-mound breakwater
concrete armour units
FEMDEM
combined finite-discrete element method
fracture
modelling
wave-structure interaction

How to Cite

Latham, J.-P., Xiang, J., Anastasaki, E., Guo, L., Karantzoulis, N., Vire, A., & Pain, C. (2014). NUMERICAL MODELLING OF FORCES, STRESSES AND BREAKAGES OF CONCRETE ARMOUR UNITS. Coastal Engineering Proceedings, 1(34), structures.78. https://doi.org/10.9753/icce.v34.structures.78
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Abstract

Numerical modelling has the potential to probe the complexity of the interacting physics of rubble mound armour systems. Through forward modelling of armour unit packs, stochastic variables such as unit displacement and maximum contact force per unit during an external oscillatory disturbance can be predicted. The combined finite- discrete element method (FEMDEM) is a multi-body method ideally suited to model the behaviour of the armour layer system and the stresses generated within complex shape units. In this paper we highlight the latest developments made with the application of FEMDEM technology to breakwater modelling including realistic rock underlayer and concrete unit layer topologies, maximum contact force distributions, internal unit stresses, fracture and unit breakages. Finally, fully coupled wave and multi-body armour unit motion with internal dynamic stress generation is illustrated.
https://doi.org/10.9753/icce.v34.structures.78
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