CAJ | 학술논문

研究破片对（由钢板、纤维增强复合材料板及钢板叠合而成）纤维增强复合材料三明治板穿甲过程中能量转化规律。进行破片模拟弹丸（FSP）对不同结构三明治板高速穿甲数值仿真，获得FSP弹丸对16种三明治板的弹道极限，并与实验结果对比验证数值仿真的可信度。通过分析数值仿真结果，进一步研究破片临界贯穿条件下纤维增强复合材料三明治板各组成部分吸能比率与结构尺寸相关性。结果表明，不同厚度夹层板的吸能比率恒定（芳纶纤维10．41％，玻璃纤维2．68％），夹层板内能随厚度的增加呈二次函数增加。由此获得破片对纤维增强复合材料三明治板弹道极限速度计算方法。
연구파편대（유강판、섬유증강복합재료판급강판첩합이성）섬유증강복합재료삼명치판천갑과정중능량전화규률。진행파편모의탄환（FSP）대불동결구삼명치판고속천갑수치방진，획득FSP탄환대16충삼명치판적탄도겁한，병여실험결과대비험증수치방진적가신도。통과분석수치방진결과，진일보연구파편림계관천조건하섬유증강복합재료삼명치판각조성부분흡능비솔여결구척촌상관성。결과표명，불동후도협층판적흡능비솔항정（방륜섬유10．41％，파리섬유2．68％），협층판내능수후도적증가정이차함수증가。유차획득파편대섬유증강복합재료삼명치판탄도겁한속도계산방법。
The energy transform in the process of fragment armor-piercing against a sandwich plate with fiber reinforced composite cores (made up of superimposed steel plate,composite material plate and steel plate laminated)was considered .The fragment simulation projectile (FSP)penetrating into different kinds of sandwich plates with high velocity were numerically simulated and the ballistic limits of fragment piercing 16 kinds of sandwich plates were obtained.The credibility of the numerical simulation method was verified by comparing its results with the experimental ones.Under critical fragment perforation,the correlation between the energy absorption ratio of the each part of the sandwich plate and the structural size was studied by analyzing the numerical simulation results.The results show that the energy absorption ratio is constant for different thickness core plate(for aramid fiber core,10.41%,for glass fiber core,2.68%),the internal energy in core plate is quadratically increased with the increase of its thickness.On this basis,the calculation method for ballistic limit velocity of fragment penetrating into sandwich plate with fiber reinforced composite cores was obtained.