Analytical prediction method for plastic response of multi-stiffened plates under the blast impact load
In this paper,the explosion response of steel tightly reinforced plates under air explosion load is simu-lated.Assuming that the deformation mode of the dynamic response of the reinforced plate is the same as the stat-ic limit deformation mode,the energy principle and the plastic deformation principle of the reinforced plate struc-ture are used to analyze and obtain the motion control equations of its plastic dynamic response under the action of the blast impact load.Meanwhile,the simulation analysis of the stiffened plate under the air blast load is car-ried out by using the finite element software ABAQUS,and the deformation theory of the reinforced plate struc-ture is verified according to the simulation analysis results.A reference is provided for the design and impact re-sistance evaluation of steel stiffened plates.
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