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弹体侵彻钢筋混凝土靶开坑深度研究

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弹体侵彻钢筋混凝土靶开坑深度研究
Investigation on Crater Depth of Projectile Penetrating into Reinforced Concrete Target
投稿时间:2017-04-11
DOI:10.15918/j.tbit1001-0645.2018.06.003
中文关键词:侵彻钢筋混凝土开坑深度弹体质量初速度
English Keywords:penetrationreinforced concretecrater depthprojectile weightinitial velocity
基金项目:国家自然科学基金资助项目(11390362,11572048);国家部委基础科研资助项目(B1020132071)
作者单位E-mail
张爽北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081
武海军北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081wuhj@bit.edu.cn
黄风雷北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081
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中文摘要:
研究弹体侵彻靶板的开坑深度,有助于提升侵深和过载的计算精度.首先,通过总结对比现有的开坑深度模型以及试验数据的回归分析,建立了考虑弹体质量和初速度的开坑深度模型.然后,以此为基础给出了弹体侵彻钢筋混凝土靶开坑深度的计算方法.最后,结合作者早前建立的钢筋混凝土动态球形空腔膨胀理论,利用文献试验数据对开坑深度模型进行了应用对比分析.本文模型考虑了弹体质量、初速度以及首层钢筋网埋设深度等因素的影响,可用于分析不同质量、不同初速度弹体侵彻钢筋混凝土靶的开坑深度.
English Summary:
The investigation on crater depth can improve the calculation precision of penetration depth and overload. Firstly, a new crater depth model which considered projectile weight and initial velocity was established through the summary and comparison of existing crater depth models and the regression analysis of experimental data. Then, the crater depth calculation method of projectile penetrating into reinforced concrete target was proposed on this basis. Finally, combined with the dynamic spherical cavity expansion theory in reinforced concrete established by the authors earlier, the new crater model was used and analyzed based on the experimental data from references. This model considers projectile weight, initial velocity and laying depth of the first layer of reinforced mesh, and it can be used to predict the crater depths of projectiles with different weights and different initial velocities penetrating into reinforced concrete targets. Especially, this model provides a basis for predicting crater depth of large mass projectile and reinforced concrete.
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