Study on Numerical Model of the Collision Effect between River Ice and Flexible High Pier

Abstract:

In this paper, the finite element model of river ice collision on the pier was established by adopting explicit dynamic analysis software package, LS-DYNA. And the finite element analysis model establishment methods for calculating the collision interaction forces between the river ice and flexible high pier were studied. The simplified constitutive model of river ice was proposed. Factors influencing the simulation of flow ice collision on piers were discussed including the meshing size of ice sheet, and the meshing size of pier in contact area, the contact type with related algorithms. The study show that Solid164 can be used to simulate the ice sheet and the contact area of pier; in terms of the model of collision effect between river ice and flexible high pier; automatic surface-to-surface contact type, ASTS, is the most appropriate; the river ice can be simplified as linear elastic material; rigid body can be used to connect the solid element and beam element. The conclusions drawn from this paper provide a new method for calculating the collision force between ice sheet and flexible high pier, which has a significant meaning in calculating the river ice collision forces theory.

• Periodical: Applied Mechanics and Materials (Volume 723)
• Pages: 65-70
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.723.65
• Online since: January 2015
• Authors: Tao Peng*, Yan Han, Dong Zhai
• Keywords: ASTS, Finite Element Analysis (FEA), Flexible High Pier, Rigid Body, River Ice

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DOI: 10.1061/41072(359)59

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