Gurney equation
The basic Gurney equations for flat sheets assume that the sheet of material is a large diameter. Small explosive charges, where the explosive's diameter is not significantly larger than its thickness, have reduced effectiveness as gas and energy are lost to the sides. See more The Gurney equations are a set of mathematical formulas used in explosives engineering to relate how fast an explosive will accelerate an adjacent layer of metal or other material when the explosive detonates. This … See more When an explosive adjacent to a layer of a metallic or other solid material detonates, the layer is accelerated both by the initial detonation shock wave and by the pressure of the … See more • Nuclear weapon See more Cylindrical charge For the simplest case, a long hollow cylinder of metal is filled completely with explosives. The … See more • Explosives engineering • Explosive velocity • Table of explosive detonation velocities See more WebJun 4, 2015 · J~V^2/d^3 is the classic relation (Mott-Gurney law) valid for constant (and low) mobility at sufficiently high (but not very high) bias. J~V^ (2+n)/d^ (3+n) is SCLC with trap filling. Waranantha...
Gurney equation
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WebThe Mott-Gurney equation is obtained as follows the electric field E inside the conducting solid is given by the Poisson equation [32]... The conditions of the experiment discussed … Webequation of state [3-4] for an explosive. The Gurney equations are a set of mathematical formulas used in explosives engineering to determine the capability of a detonating explosive to accelerate a surrounding layer of inert material. The Gurney velocity can then be used to estimate fragment velocities, for example. The JWL
WebThe traditional Gurney equation for energy density is found to be 3–8 % low compared to Cylinder test results. The suggestion is made to divide the Gurney energy by the square … WebThis second order differential equation cannot be analytically solved in the general case. In 1940, Mott and Gurney derived an exact solution in the particular case where 7 = 0, for a semi infinite material, and assuming that the electric field is zero at X = 00 [48]. The charge density and potential are then given by... [Pg.301]
WebSep 19, 2024 · For a trap-free single layer single carrier (hole-only or electron-only) organic device of thickness d, dielectric constant ε r, and mobility μ, the relation of current density j with voltage V is described by the well-known Mott–Gurney equation, j = 9 ε 0 ε r μ V 2 / 8 d 3, which can be rewritten as j = G V, where G = 9 ε 0 ε r μ / 8 d 3 can be called space … WebMar 15, 2013 · A Gurney-type equation was previously corrected for wall thinning and angle of tilt, and now we have added shock wave attenuation in the copper wall and air gap energy loss. Extensive calculations were undertaken to calibrate the two new energy loss mechanisms across all explosives. The corrected Gurney equation is recommended for …
Web2which has units of velocity, is commonly referred to as Gurney’s Constant andE, varies with the explosive used. All of the Gurney equations take the form of equation 3. The …
WebThe Gurney equations are a set of mathematical formulas used in explosives engineering to relate how fast an explosive will accelerate an adjacent layer of metal or other material when the explosive detonates. This determines how fast fragments are released by military explosives, how quickly shaped charge explosives accelerate their liners inwards, and in … dr timothy light clearwaterWebThe presented solutions reduce to all the known Gurney formulas for the more simple geometries at the appropriate limits. The accuracy of the predictions by the obtained … dr timothy lightfootWebThe meaning of GURNEY is a wheeled cot or stretcher. How to use gurney in a sentence. dr. timothy light marion ohWebThe modified Gurney equation was used to estimate the length and diameter of the cylindrical charge to achieve the desired velocity; and the modified Taylor equation was used to arrive at the radius of curvature of the fragmenting disc. The methodology is further explained for generating a rectangular beam of fragments dr timothy lewan westminster coWebwhere (2£)1/2 is the Gurney velocity, a constant for a given explosive, \1/C is the rnetal-to-charge weight ratio, and n = 1, 2, or 3 for plane, cylindrical, and spherical symmetry. … dr timothy lightWebThis expression is known as the Mott-Gurney law. In the velocity-saturation regime, this equation takes the following form. Note the different dependence of on in each of the … dr timothy light largo flWebthat Gurney energy worked out by Gurney equations does not take the detonation wave velocity, D. Thus, they used C-J equation to show that the total energy of the explosive serves as the initial energy, and then deduced the relation between the detonation velocity, D, of an explosive and its Gurney energy. columbia university chinese students