Paper Title:
Influence of Soft Interlayer in Concrete Sandwich Panel on Propagation Characteristics of Plane Explosive Wave
  Abstract

The propagation characteristics and laws of concrete sandwich with foam soft interlayer under contact explosion were studied by numerical simulation. Based on a reasonable choice of the constitutive model and physical parameters by numerical methods, the plane blast wave propagation features of the concrete structure are illustrated, including the stress wave propagation and attenuation, space-time evolution of damage and wave reflection and transmission at layered interfaces, and the total energy distribution in various medium layers. The structural failure and destruction of two-dimensional dynamic process was reproduced by numerical computation. Meanwhile, it is pointed out that the role of soft interlayer in concrete sandwich structure is mainly by its low wave impedance, the waveform of incident wave is changed and stress wavelength is pull wide, the radial diffusion of energy is enhanced and the amplitude of impulse and energy inputting the third layer is reduced, thus as a result the protective performance of overall concrete sandwich structure is improved.

  Info
Periodical
Advanced Materials Research (Volumes 255-260)
Edited by
Jingying Zhao
Pages
2370-2374
DOI
10.4028/www.scientific.net/AMR.255-260.2370
Citation
Y. X. Dong, S. S. Feng, X. J. Duan, L. X. Xiao, "Influence of Soft Interlayer in Concrete Sandwich Panel on Propagation Characteristics of Plane Explosive Wave", Advanced Materials Research, Vols. 255-260, pp. 2370-2374, 2011
Online since
May 2011
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$32.00
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