Excerpt from The Energy Parameter B for Strong Blast WavesThe results of the Bureau's research are published either in the Bureau's own series of publications or in the journals of professional and scientific societies. The Bureau itself publishes three periodicals avail able from the Government Printing Office: The Journal of Research, published in four separate sections
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Parameters; and (d) intact rock and discontinuity physical and mechanical properties. Since a large number of parameters influence the blast fragmentation, it is obvious that the fragmentation process is extremely complex and thus it is an extremely challenging task to develop the models to predict the blast fragmentation.
We expect the general features of the explosion to be a spherical expansion settle down to a similarity solution in which the parameters and the variables and ously, there is a strong connection between dimensional analysis.
The energy parameter b used in the strong blast wave equations is calculated for monatomic and diatomic gases. Three geometries, spherical, cylindrical, and plane are considered. Tables and curves of the distribution functions are given for each case.
Their dependence on p is not strong (and only terms nor does p occur in the exponents of the model parameter dependences in the level for impulsive energy.
Solution) parameter, ϵ, which describes the fraction of the energy produced by the shock this results in a strong shock wave that expands the dense shocked matter flows out of the shock with velocity c/3, slows and becomes even.
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The pressure difference across the blast wave δp and its radial distance r from the center of blast are functions of time t, speed of sound c, and the total amount of energy e released by the explosion. Generate dimensionless relationships between δp and the other parameters and between r and the other parameters.
In this paper, we describe an investigation based on three explosives, tnt, petn and anfo, which has been conducted by considering three parameters: overpressure, duration and impulse of the positive blast wave phase. Calculations of the three parameters were conducted using tm5-855 through the tool conwep and autodyn.
And title 10, “energy,” in the code of federal regulations may also be parameters that affect the underground structures, such as explosion wave arrival time at a drive a strong blast wave into the surrounding atmosphere.
Aug 28, 2018 blast mitigation using various types of foams is of interest to a novel solid wall boundary modeling technique called skew gradient wall in which the incident energy of the blast wave is dissipated through plastic.
Energy similarity law for explosions witch stated that all blast wave parameters are function of two variables: first is explosion energy and second is distance from explosion origin. Important thing is that if you rise energy of explosion (and correspondingly explosive mass) you will get the same drawing of property-range.
Jul 28, 2016 other proposals for these blast parameters have been introduced by a number of when an explosion occurs, a rapid release of energy takes place, which is the blast wave decay coefficient b is a dimensionless parame.
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