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Dynamics performance analysis on stiffened plates subjected to blast loading

CUI Kuan;CHAI Yuyang;Institute of Industry Technology,Guangzhou & Chinese Academy of Sciences;School of Astronautics,Harbin Institute of Technology;  
To enhance the blast loading resistance ability of outer plates of warships,submarines and aircraft carriers,the effects of material damping,strain rate,geometry of stiffened plate and geometric parameters of stiffener on the dynamics performance of structure are analyzed by Abaqus. The results indicate that the stiffened plate shows better ability of resistance to blast loading than ordinary plate; the effect of material damping and strain rate on the dynamics performance of structure is great; the stiffened plate with double cross reinforcement has better ability of resistance to blast loading than other geometrical configurations; the effect of the depth-width ratio of rectangular stiffener on the dynamics performance of stiffened plate is also obvious,and this parameter must be rationally chosen to meet the structure design requirement.
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