Numerical Study of the Effects of Metallic Plates in the Attenuation of the HRAM Phenomenon

Abstract:

Hydrodynamic Ram (HRAM) is a phenomenon that occurs when a high-energy object penetrates a fluid-filled container. The projectile transfers its momentum and kinetic energy through the fluid to the surrounding structure increasing the risk of catastrophic failure and excessive structural damage. In this work a numerical study of the influence of metallic plates, inside a fluid-filled aluminium tube, in the attenuation of the HRAM phenomenon effects is performed. The numerical results regarding walls displacement and pressure inside the tank will be compared with a case in which there are no barriers inside the tube. The simulations are performed with the software LS-DYNA applying the ALE technique.

• Periodical: Applied Mechanics and Materials (Volume 566)
• Pages: 511-516
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.566.511
• Online since: June 2014
• Authors: David Varas*, Jorge López-Puente, Ramón Zaera
• Keywords: ALE, Fluid Filled Tank, Hydrodynamic RAM, Impact

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