Under the Blast Impact Load Study of Analytical Prediction Method for Plastic Response of Stiffened Plate
摘要
In this paper, a steel stiffened plate is used as the research object and its blast response under the action of air blast load is simulated and studied. Assuming that the deformation mode of the dynamic response of the reinforced plate is the same as the static limit deformation mode, the energy principle and the plastic deformation principle of the reinforced plate structure 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 carried out using the finite element software ABAQUS, and the deformation theory of the reinforced plate structure is verified according to the simulation analysis results. It provides a reference for the design and impact resistance evaluation of steel stiffened plates.