CAJ | 학술논문

采用撞击实验和理论模型对单层金属板的抗侵彻性能进行了研究，分析了靶体厚度对抗侵彻性能的影响。通过对比撞击实验和理论模型计算结果，验证了理论模型和参数的有效性。结果表明，采用合适的理论模型能够有效地预测靶板在弹体撞击下的弹道极限。此外，分析了靶体在弹体撞击下的塑性变形总耗能，包括靶板局部变形和整体变形的耗能，同时考虑了靶体材料的应变率效应。在平头弹撞击厚靶的工况中，引入了一个修正函数对靶体厚度进行修正。
채용당격실험화이론모형대단층금속판적항침철성능진행료연구，분석료파체후도대항침철성능적영향。통과대비당격실험화이론모형계산결과，험증료이론모형화삼수적유효성。결과표명，채용합괄적이론모형능구유효지예측파판재탄체당격하적탄도겁한。차외，분석료파체재탄체당격하적소성변형총모능，포괄파판국부변형화정체변형적모능，동시고필료파체재료적응변솔효응。재평두탄당격후파적공황중，인입료일개수정함수대파체후도진행수정。
Impact tests and theoretical analysis were carried out to study the ballistic performance of monolithic steel plates,and the influence of thickness of plates on ballistic performance was revealed.In general,good agreement was obtained between the predictions from analytical model and the experimental results.The results show that the theoretical model can be used to predict the limit ballistic velocities of plates under the impact of projectiles.Moreover, the energy absorption due to plastic deformation of plates was discussed and accounted,including local and global deformation energy absorption,and the effect of strain rate of plate material was also taken into account.An amendment function was used to correct the thickness of plate in the case of plate impacted by blunt-nosed projectile.