Numerical simulation of detonation wave propagation through a rigid permeable barrier

Тропин, Д. А.; Temerbekov, V. M.

doi:10.1016/j.ijhydene.2022.08.256

Cited by 6 publications

(2 citation statements)

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“…When discussing blast wave protection, the greatest challenge is raised by the already in-service vehicles, where protection can be achieved only by considering the use of additional mitigation systems. Placing perforated plates beneath the military vehicle’s belly is a costless and possibly effective approach [ 31 , 32 , 33 ] to retrofit an already in-service design to withstand higher blast wave loads.…”

Section: Discussionmentioning

confidence: 99%

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Experimental and Numerical Study on Perforated Plate Mitigation Capacity to Near-Field Blasts

Puică¹,

Trană

Pupăză

et al. 2023

Materials

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Based on the analysis of existing collective shockwave protection methods worldwide, this paper addresses the mitigation of shock waves by means of passive methods, namely the use of perforated plates. Employing specialized software for numerical analysis, such as ANSYS-AUTODYN 2022R1®, the interaction of shock waves with a protection structure has been studied. By using this cost-free approach, several configurations with different opening ratios were investigated, pointing out the peculiarities of the real phenomenon. The FEM-based numerical model was calibrated by employing live explosive tests. The experimental assessments were performed for two configurations, with and without a perforated plate. The numerical results were expressed in terms of force acting on an armor plate placed behind a perforated plate at a relevant distance for ballistic protection in engineering applications. By investigating the force/impulse acting on a witness plate instead of the pressure measured at a single point, a realistic scenario can be considered. For the total impulse attenuation factor, the numerical results suggest a power law dependence, with the opening ratio as a variable.

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Section: Discussionmentioning

confidence: 99%

“…The numerical investigation of blast waves is widely used nowadays in order to investigate several key parameters, such as pressure-time profile [ 30 ] or the propagation mode in various mediums [ 31 ].…”

Section: Methodsmentioning

confidence: 99%