نتایج جستجو برای: Explosion charge
تعداد نتایج: 158924 فیلتر نتایج به سال:
In research or experimental works related to blast loads, the amount of explosion material and distance of explosion point are very important. So, in this paper has been attempted to present a parametric study of the reactive powder concrete subjected to blast load. The effect of the different amount of TNT adopted the literature, distance of explosion point from RPC slab and also the location ...
Behavior of blast wave in underwater explosion is of interest to metal forming community and ship designers. Underwater detonation is, also a potential hazard to the water intakes or a plant spent fuel pool. In this paper, some techniques for calculating free-field blast parameters such as pressure and impulse in underwater explosion and prediction of bubble pulsation parameters are presented a...
Nowadays, with increasing problems related to lack of water resources and energy problems, the dam construction industry is dramatically expanding in our country. On the other hand, increase of threats to unify the vital systems of the country, causing financial losses through the use of various explosive devices, Has found a special need in the country. In this research, it has been attempted ...
We explore time-resolved Coulomb explosion induced by intense, extreme ultraviolet (XUV) femtosecond pulses from a free-electron laser as a method to image photo-induced molecular dynamics in two molecules, iodomethane and 2,6-difluoroiodobenzene. At an excitation wavelength of 267 nm, the dominant reaction pathway in both molecules is neutral dissociation via cleavage of the carbon-iodine bond...
Thermobaric charge PBXIH-135 is an explosive with desirable mechanical and safety characteristics. In present research, this PBX charge is provided on scale of 2 kg and its physical, mechanical, sensitivity and performance parameters were investigated. Prepared sample has density of 1.64 g/cm3, hardness of 53 Shore A, tensional strength of 1.68 MPa and strain of 44%. Impact and friction sensiti...
In the process of tunnel excavation, blasting technology is one commonly used excavation methods. The mainly divided into smooth and presplitting blasting. blasting, in order to prevent excessive damage caused by explosive often carried out means uncoupled charging. previous studies, blast hole were placed concentrically, while actual engineering, charge exists form eccentricity. this study, LS...
A droplet charged above the Rayleigh limit is unstable. In resulting dynamical process, referred to as a Coulomb explosion, smaller droplets with higher charge-to-mass ratios are ejected, reducing charge of parent below limit. Furthermore, if sufficiently small, electric field on its surface can promote ion emission. Ion emission lower spherical limit, keeping it stable, or reduce deforming dro...
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