Numerical modelling of forces, stresses and breakages of concrete armour units

Conference paper (2014)

Authors

John Paul Latham Imperial College London
Jiansheng Xiang Imperial College London
Elena Anastasaki Imperial College London
Liwei Guo Imperial College London
Nikolaos Karantzoulis Imperial College London
A.C. Viré Wind Energy - Aerospace Engineering
Christopher Pain Imperial College London
Research Group
Wind Energy (Aerospace Engineering) (TU Delft)
Copyright: © 2014 John Paul Latham, Jiansheng Xiang, Eleni Anastasaki, Liwei Guo, Nikolaos Karantzoulis, A.C. Viré, Christopher Pain
DOI: https://doi.org/10.9753/icce.v34.structures.78
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Published Date

2014

Language

English

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Faculty

Aerospace Engineering

Department

Flow Physics and Technology

Research Group

Wind Energy

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.

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