Evaluation of the blast mitigating effects of fluid containers

Blast Mitigation Effects of Water Walls: Numerical Simulation and Analytical Approach

“…Figure 16 presents the kinetic energy of the incident shock wave, kinetic energy of the transmitted wave, kinetic energy and the internal energy of the water changed as peak incident pressure p i . It is found that: (1) most energy of the shock wave is reflected by the water barrier; (2) the increment of the kinematic energy in the water is much larger than that of the internal energy, which indicates that most of the energy from the shock wave is used to push the water splashing backward, and this conclusion is similar as reported in [11].…”

“…It is almost impossible to theoretically deduce the whole process of the blast wave propagation and its interaction with the water wall due to the complex physical phenomena. According the results and comments from [11], the primary mitigation mechanism of the water is the momentum extraction from blast overpressure. Thus, a one-dimensional analytical approach is proposed for further analysis.…”

“…Malvar and Tancreto [10] demonstrated that the water/charge ratio of 2 was considered to be the most effective on the blast wave mitigation according to their tests. Bornstein et al [11] studied the performance of water barriers to mitigate the blast loading on armored vehicles and found that the use of a water-filled container was effective to mitigate the deformation of armored vehicles. They also claimed that the primary mitigation mechanism of the water was momentum extraction as there was no enough time for water to evaporate prior to loading applied on targets.…”

A Systems View of Vehicle Landmine Survivability

“…Measures may also be needed to locally limit dynamic hull deformations, particularly in critical areas where occupant survival spaces would be encroached. Structural reinforcement in critical sections as well as the use of fluids [19] are examples of methods that may be used to mitigate dynamic hull deformation.…”

Experimental investigations of the response of a portable container to blast, fragmentation, and thermal effects of energetic materials detonation

“…Resnyansky and Delaney (2006) recorded a large reduction of peak incident pressure by surrounding 0.5 kg Pentolite charge with 110 l of water inside a spherical container. Bornstein et al (2015) studied water-filled container against near-field blast loading, the effects of fragments was not considered. Qi et al (2017).…”