نتایج جستجو برای: underwater explosion undex

تعداد نتایج: 32987  

Journal: :The Journal of the Acoustical Society of America 1984

Journal: :Physics of Plasmas 2022

Experimental and magnetohydrodynamic numerical simulation results analysis of a μs- sub- μs-timescale overdamped underwater electrical explosion copper wires having different lengths diameters are presented. For these explosions, ∼80% the energy stored in pulse generator is deposited into wire during time comparable or shorter than quarter period underdamped discharge. It was found that thresho...

ژورنال: مواد پرانرژی 2011
زمانی, جمال, شیخی کوهسار, علی اصغر , معتمد الشریعتی, سید هادی, کدخدا قمصری, علی,

  Abstract   In this paper, the effect of strain rate sensitivity of materials in the case of a fully clamped circular plate has been discussed introducing a new criterion called "dynamic to static collapse pressure ratio". In order to do so, a simple mass and wire model is assumed. Then, using Cowper-Symonds constitutive relation and Perrone-Bhadra Simplifications, the mean strain rate of su...

Journal: :International Journal of Solids and Structures 2022

The response of underwater structures to a near-field explosion is coupled with the dynamics bubble and surrounding water. This multiphase fluid–structure interaction process investigated in paper using two-dimensional model problem that features yielding collapse thin-walled aluminum cylinder. A recently developed computational framework couples finite volume compressible fluid solver element ...

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