Numerical Analysis of Rigid and Flexible Reflection of Air Shock Wave

Abstract:

To study the difference between the reflected pressures of air shock wave on the rigid and flexible walls, the FE models of RC anti-blast wall and high-strength polyethylene fiber textile anti-blast wall were set up and the FSI solver of LS-DYNA was used to perform the numerical simulation. The TNT charge weight used in simulation is 5kg, 10kg, 15kg and 20kg, respectively. The peak reflected overpressures of air shock wave on the two kinds of walls were obtained. The variation of reflection coefficient of air shock wave on the anti-blast wall with scaled explosion distance and the wall stiffness was analyzed.

• Periodical: Applied Mechanics and Materials (Volumes 638-640)
• Pages: 2010-2014
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.638-640.2010
• Online since: September 2014
• Authors: Yao Zhang*, Dong Jin Yan, Xin Zhe Nian, Qian Li Zhang
• Keywords: Air Shock Wave, Anti-Blast Wall, Flexible Reflection, Rigid Reflection, Surface Explosion

References

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