Experiment on the Attenuation Characteristics of Shock Wave Interacting with Open and Closed Foam

Abstract:

For understanding the dynamic behavior of open and closed foam subject to a shock wave, this paper through experiments, to gain a deeper understanding of the incidence, reflection and transmission of a shock wave when it interacted with cellular foam. Moreover, by analyzing the loss of the peak overpressure and positive impulse, we were able to respectively know the positive impulse of the incidence, reflection and transmission shock wave. The experimental results indicated that the attenuation capability for foam to the shock wave was caused by the internal friction and deformation of solid phase, which would absorb the energy of the shock wave. From the results we gain an understanding that the mechanical phenomenon of open foam to shock wave are not fully consistent with those of closed foam , while the attenuation of open foam to shock wave is more effective than that of closed foam.

• Periodical: Advanced Materials Research (Volume 1035)
• Pages: 445-452
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1035.445
• Online since: October 2014
• Authors: Jian Wang, Bao Gui Wang, Gang Tao
• Keywords: Attenuation Rate, Cellular Foam, Peak Overpressure, Positive Impulse, Shock Wave

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