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http://dx.doi.org/10.5394/KINPR.2010.34.6.435

A Study for Analysis on Deformation of Rubble Mound Structure Using VOF and DEM Methods  

Kim, Mi-Kum (Energy & Environmental Business Center, Korean Register of Shipping)
Kim, Chang-Je (Division of Navigation Science, National Korea Maritime University)
Publication Information
Journal of Navigation and Port Research / v.34, no.6, 2010 , pp. 435-440 More about this Journal
Abstract
A numerical model, which can compute deformation of rubble mound structures composed with various size materials, was proposed. In the numerical model, wave field into the mound structures was computed by CADMAS-SURF and the deformations of mound structures were computed by DEM. Interaction between wave field and sectional deformation of structure was considered and to present the variation of behaviors caused by various properties of materials, computation was carried out with random coefficients by Monte Carlo simulation method for contact stiffness and friction angle. The experiments were carried out with rubbles and glass balls with radius of 2.9cm, 2.6cm and 1.5cm. And the deformation characteristics of rubble mounds composed with various size materials were clarified. Furthermore the validity and the applicability of the model were discussed by comparing with the experimental results.
Keywords
CADMAS-SURF; DEM; Rubble mound; Contact stiffness; Monte Carlo simulation;
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