弹道学报2017，Vol.29Issue(2)：19-25,7.
考虑侵蚀效应的卵形弹丸侵彻混凝土介质模型研究
Model of Ogive-nose Projectile Penetrating Concrete Target Considering Effect of Mass Loss and Nose Blunting
摘要
Abstract
An iteration model was built by considering both the mass loss and nose blunting effect.By the model,the depth of penetration,mass loss,shape of projectile nose and acceleration can be predicted when the initial condition is given.A correction factor was proposed by considering the hardness of aggregate and projectile material based on the numerical analysis on the penetration experiment.The result calculated by this model is more accurate when the correction factor is introduced.The least squares fitting of static resistance item was conducted through penetration experiment on the basis of the correction model.The commonly used static-item in Forrestal empirical formula was corrected by the fitting method.The new static resistance-item reflects the static resistance of concrete more accurately.Comparison results of experiment and proposal model show that the ratio of aggregate hardness to the hardness of the projectile is linear with the mass-loss-rate during penetration.关键词
卵形弹丸/侵彻/混凝土/侵蚀/弹体硬度/骨料硬度Key words
ogive-nose projectile/penetration/concrete/erosion/hardness of projectile/hardness of aggregate分类
军事科技引用本文复制引用
刘志林,王晓鸣,李文彬,宋梅利..考虑侵蚀效应的卵形弹丸侵彻混凝土介质模型研究[J].弹道学报,2017,29(2):19-25,7.基金项目
国家自然科学基金项目(51278250) （51278250）
