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Investigation of Tsunami Force on Superstructure Using Explicit Code

Investigation of Tsunami Force on Superstructure Using Explicit Code

Post by: Javad Mehrmashhadi
10/06/2015
2125 views

The amount of tsunami forces on large intercity bridges is investigated in this project. LS-Dyna explicit code has been employed for this research.

 

In this research, water and air have been modeled with ALE (Arbitrary Lagrangian Eulerian) formulation with ALE multi material code. CONSTRAINED_LAGRANGE_IN_SOLID has been employed with force coupling methodology.

To control the leakage of water and air and keep them inside the pool, automatic constraint was considered. However, the end of the pool was excluded in this constraint to let the water move through it and did not return to the pool.

From the pictures below, it can be clearly seen that a 45cm wave height was generated near the wave maker and it reached the bridge at velocity of 2.25 m/s. It finally applied nearly 700N on the bridge.

 

Y Coordinate of a water point close to wave maker

Transverse velocity of a water point close to wave maker

Y Coordinate of a water point close to bridge

Transverse velocity of a water point close to bridge

Applied force at the bridge

Last modified on 17/06/2015

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Javad Mehrmashhadi

Javad Mehrmashhadi

Javad Mehrmashhadi is the owner of CAE-Solutions.

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I have been doing simulation support on variety of projects within automotive and aerospace industries as well as on civil projects since 2004. Regarding my CAE skills using LS-Dyna, ANSYS, Altair Hyperworks and ADAMS I am well able to perform simulations on the following areas:
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Please contact me if you need technical support in your projects by sending your request to mehrmashhadi@gmail.com

Javad Mehrmashhadi

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