The Study of Optimal Thickness Combination of Ceramic Composite Material under Ballistic Impact

• Main Authors: Wei, Wen-Fu, 魏文福
• Other Authors: Lu, Jiu-Zhang
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/68353399777695392493

碩士 === 國防大學理工學院 === 兵器系統工程碩士班 === 102 === The goal of this study is to explore the optimal thickness combination of ceramics/Kevlar composite material under the considerations of weight, volume and ballistic resistance capability. Firstly, the ballistic tests were performed by using 0.30 inch Armor Piercing (AP) bullets. Assuming the kinetic energy loss of projectile is the energy absorption of target plates, the regression equation of target thickness and ballistic resistance capability by regression analysis was established. Secondly, the optimal thickness combination of ceramics/Kevlar composite material under the constraint of areal density, total thickness and ballistic resistance capability was obtained by using Lagrange Multiplier Method. Finally, the finite element software ANSYS/LS-DYNA was also used to perform a simulated analysis on the penetration performance. The results from simulation were then compared with the experimental results to verify the reliability. Through the analysis, there was an interaction with the influence of energy absorption due to the thickness of ceramic and Klevlar fiber laminate. Therefore, there was an optimal thickness combination of ceramics/Kevlar composite material under the considerations of areal density or total thickness. On the other hand, the maximum energy absorption increase with the increasing of the constraint of areal density and total thickness. This relationship can be used to get the optimal thickness combination of ceramics/Kevlar composite material under the constraint of impact energy.