The Numerical Simulation Experiment of Exploded in the Flat Box Sealed Structure

Basis on the theory of mechanics of explosion, according to nonlinear finite element method shows that dynamic analysis software ANSYS/ls-dyna , the explosion wave propagation in the flat box sealed structure and the distribution of overpressure on the wall is studied under the action of explosion. Combining the reality of [Guo Zhikun experiment and basic data , ANSYS/ls-dyna is used to establish a standard size 4 studio flat box experimental model, within the model corresponding to the positioning of the drug to 220 units of TNT. Through ANSYS/ls-dyna visualization process study the transmission mechanism of shock wave in a flat trunk, acquisition of some points on the wall of the overpressure peak data caused by explosion, combined with experiments of the proceeds of the actual data values were analyzed.