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The attenuation characteristics and optimization design of polyurethane foam bulkhead to blast wave
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Abstract
Polyurethane foam has the characteristics of low density, nonlinear mechanics and energy absorption, and has been widely used in the research of shock wave attenuation. In order to realize the effective attenuation of the blast wave, the attenuation process of the shock wave in the medium is simulated by Autodyn. The impact ignition simulations were carried out for the Comp B impact ignite TNT under the bulkheads. The results show that the explosion-proof performance of the composite bulkhead is signi2icantly better than that of the single medium bulkhead. The combination of PR 6720 (polyurethane foam) and 45#steel can greatly attenuate the blast wave. The impact impedance matching relationship of the bulkhead and the medium on both sides should be used as an important design factor when designing the bulkhead.
Title: The attenuation characteristics and optimization design of polyurethane foam bulkhead to blast wave
Description:
Abstract
Polyurethane foam has the characteristics of low density, nonlinear mechanics and energy absorption, and has been widely used in the research of shock wave attenuation.
In order to realize the effective attenuation of the blast wave, the attenuation process of the shock wave in the medium is simulated by Autodyn.
The impact ignition simulations were carried out for the Comp B impact ignite TNT under the bulkheads.
The results show that the explosion-proof performance of the composite bulkhead is signi2icantly better than that of the single medium bulkhead.
The combination of PR 6720 (polyurethane foam) and 45#steel can greatly attenuate the blast wave.
The impact impedance matching relationship of the bulkhead and the medium on both sides should be used as an important design factor when designing the bulkhead.
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