The stability of cylindrical tanks filled with liquid under the influence of impulse loads

7th International Symposium Actual Problems of Computational Simulation in Civil Engineering

土木建筑工程;计算机科学

Leonenko, Yu.S.^1 ; Chemodurov, V.T.^1

V.I. Vernadsky Crimean Federal University, Kievskaya st. 181, Simferopol

295493, Russia^1

关键词: Air explosions;    Cylindrical shell;    Cylindrical tanks;    External loading;    Flexural deformations;    Loss of stability;    Maximum pressure;    Tangent moduli;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/456/1/012053/pdf
DOI  :  10.1088/1757-899X/456/1/012053

来源: IOP

【 摘 要 】

The paper presents a mathematical model of oscillations of a cylindrical shell, filled with liquid after exposure to a shock wave created by an air explosion. Two models are applied to the description of behavior of a shell depending on duration of external loading, namely the model of the tangent modulus for pulse action and the model of the elastic modulus for quasi-static influence. Levels of the maximum pressure and impulse are determined for a real-life tank using these models at which a loss of stability occurs for one of the shape of flexural deformations. Critical curves of stability in the maximum pressure-impulse of pressure plane are also developed.