NUMERICAL MODELING OF NON-COHESIVE CONTACT IN MULTI-BODY HYDRODYNAMIC SYSTEMS WITH SPH
No. 35 (2016), Coastal Structures
No. 35 (2016)

NUMERICAL MODELING OF NON-COHESIVE CONTACT IN MULTI-BODY HYDRODYNAMIC SYSTEMS WITH SPH

Coastal Structures
https://doi.org/10.9753/icce.v35.structures.49
Published 2017-06-23
Mohammad Javad Mohajeri
Tarbiat Modares University
Mehdi Shafieefar
Tarbiat Modares University
Soheil Radfar
Tarbiat Modares UNiversity
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Keywords

non-cohesive contact
multi-body systems
rubble-mound breakwater
cube armor units
SPH

How to Cite

Mohajeri, M. J., Shafieefar, M., & Radfar, S. (2017). NUMERICAL MODELING OF NON-COHESIVE CONTACT IN MULTI-BODY HYDRODYNAMIC SYSTEMS WITH SPH. Coastal Engineering Proceedings, 1(35), structures.49. https://doi.org/10.9753/icce.v35.structures.49
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Abstract

Enforcing solid boundary conditions is one of the most challenging parts of the Smoothed Particle Hydrodynamics (SPH) method and many different approaches have been recently developed. Better understanding of interaction forces between solid bodies is of great importance in the investigation of structural stability and armor layer displacement in breakwaters. In this study, performance of repulsive force and dynamic boundary conditions have been investigated and showed that non-physical results are presented in non-cohesive contact. In this paper, a non-cohesive contact model in multi-body hydrodynamic systems has been developed and validated against other common boundary conditions. Using the developed contact model, the effect of regular and irregular placement of cubic concrete armors has been investigated. Also, comparison has been made with Van Buchem (2009) experimental results and concluded that in the irregular case it is more possible that a unit moves toward instability.
https://doi.org/10.9753/icce.v35.structures.49
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References

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