Confined Rayleigh–Plesset equation for Hydrodynamic Ram analysis in thin-walled containers under ballistic impacts

2015 ◽  
Vol 86 ◽  
pp. 67-72 ◽  
Author(s):  
Thomas Fourest ◽  
Jean-Marc Laurens ◽  
Eric Deletombe ◽  
Jacques Dupas ◽  
Michel Arrigoni
Keyword(s):  
Ballistic Impacts ◽  
Hydrodynamic Ram ◽  
Thin Walled ◽  
Ram Analysis

Cavity dynamics in hydrodynamic ram analysis of confined containers under ballistic impacts

2020 ◽  
Vol 218 ◽  
pp. 108036
Author(s):  
Zitao Guo ◽  
Tuo Chen ◽  
Wei Zhang ◽  
Zhongcheng Mu
Keyword(s):  
Ballistic Impacts ◽  
Hydrodynamic Ram ◽  
Ram Analysis

Hydrodynamic Ram Analysis of Non-Exploding Projectile Impacting Water

2005 ◽  
Author(s):  
Flavio Poehlmann-Martins ◽  
Jon Gabrys ◽  
Mhamed Souli
Keyword(s):  
Fuel Tank ◽  
Steel Ball ◽  
High Rate ◽  
Pressure Waves ◽  
Water Tank ◽  
Fluid Structure ◽  
Element Size ◽  
Hydrodynamic Ram ◽  
Ram Analysis

Hydrodynamic pressures generated by a non-exploding projectile penetrating a fuel tank can be very destructive. Understanding the magnitude of the pressure and its distribution inside the tank is critical for designing structure to survive these incidents. This project uses LS-DYNA to simulate a hydrodynamic ram event created by a steel ball, traveling at a high rate, impacting a tank of water. Predicted pressures are then compared to measured pressures for validation. Additionally, modeling parameters such as element size and penalty factors for fluid structure coupling are investigated. Different ways to model reflections of pressure waves off the sidewalls are studied, as well. Good correlation is achieved for pressures at many locations inside the water tank.

Cross validation of analytical and finite element models for Hydrodynamic Ram loads prediction in thin walled liquid filled containers

2015 ◽  
Vol 59 ◽  
pp. 285-296 ◽  
Author(s):  
Thomas Fourest ◽  
Jean-Marc Laurens ◽  
Eric Deletombe ◽  
Michel Arrigoni ◽  
Jacques Dupas
Keyword(s):  
Finite Element ◽  
Cross Validation ◽  
Finite Element Models ◽  
Hydrodynamic Ram ◽  
Thin Walled
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