Research on surface load of deformation circular plate under blast wave
To quickly determine the load on the deformed surface under the action of blast wave,firstly,the interaction process between the blast wave and the clamped circular plate is investigated through numerical simulation,and the distribu-tion law of explosion load on the deformed surface of the circular plate is obtained.Then,dimensional analysis is introduced to explore the influence of such factors as the radius and thickness of the circular plate,the distance between the explosion center and the circular plate,the distance between the target point and the circular center,and TNT equivalent on the de-formed surface blast load.Finally,combined with numerical simulation and dimensional analysis,the calculation formula of explosion load(maximum impulse)at any point on the deformed surface of circular plate is derived.The results show that the distribution of blast load is non-uniform on the deformed surface of the circular plate,and the peak pressure and impulse in the middle of the circular plate are higher than those at the edge;The derived formula can be used to calculate the deform-ation surface load of the circular plate quickly.The research results can provide quick and simple parameter input for the design and safety assessment of relevant protective structures.
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