An experimental and numerical study of blast induced shock wave mitigation in sandwich structures
نویسندگان
چکیده
a School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA Department of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA c School of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA Computation for Design and Optimization Program, Massachusetts Institute of Technology, Cambridge, MA 02139, USA Department of Biomedical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
منابع مشابه
بررسی تجربی و عددی میرایی موج انفجار با استفاده از پنل ساندویچی با هستهی مواد دانهای
The intrinsic properties of some materials, such as foams, porous materials and granular materials, are their ability to mitigation waves. In this study, we investigated the ability of granular materials in explosion-induced wave mitigation. The present study was carried out using numerical simulations with Autodyn hydro-code and experimental tests by shock tube. Two materials of sawdust and mi...
متن کاملNumerical analysis of energy transmission through discontinuities and fillings in Kangir Dam
A considerable amount of energy is released in the form of shock wave from explosive charge detonation. Shock wave energy is responsible for the creation of crushing and fracture zone around the blast hole. The rest of the shock wave energy is transferred to rock mass as ground vibration. Ground vibration is conveyed to the adjacent structures by body and surface waves. Geological structures li...
متن کاملNumerical Investigation of Circular Plates Deformation under Air Blast Wave
In the current research the maximum deflection of circular plates made of AA5010 and AA1100 alloys under blast load was investigated. Shock waves were produced by exploding a spherical charge in different distances from the center of plates. The ABAQUS software uses conwep equation for blast loading analysis. It was found the results of these simulations have about 30% to 40% inaccuracy in comp...
متن کاملExperimental and numerical investigation of carbon fibersandwich panels subjected to blast loading
The objective of this paper is to investigate the structural response of carbon fiber sandwich panels subjected to blast loading through an integrated experimental and numerical approach. A total of nine experiments, corresponding to three different blast intensity levels were conducted in the 28-inch square shock tube apparatus. Computational models were developed to capture the experimental d...
متن کاملWave propagation and absorption of sandwich beams containing interior dissipative multi-resonators.
In this study, a sandwich beam with periodic multiple dissipative resonators in the sandwich core material is investigated for broadband wave mitigation and/or absorption. An analytical approach based on the transfer matrix method and Bloch theorem is developed for both infinite and finite sandwich structures. Wave attenuation constants are theoretically obtained to examine the effects of vario...
متن کامل