阻尼材料/纤维层合板复合靶板抗冲击性能研究

Impact resistance behavior of damping material/fiber laminate composite target

提出了一种由阻尼材料、碳纤维层合板、UHMWPE纤维层合板构成的复合防弹结构。应用LS-DYNA软件进行有限元分析,研究该结构抗7.62 mm子弹侵彻性能;通过改变结构几何参数,研究其对冲击结果的影响规律,进一步探究阻尼层的最佳涂刷位置和最优厚度。结果表明:涂刷面层阻尼对靶板抗侵彻性能提升最为显著,涂刷芯层阻尼会降低靶板抗冲击性能;同等面密度条件下,与增加碳纤维层合板或UHMWPE纤维层合板的厚度相比,添加面层阻尼材料时,靶板抗子弹侵彻能力最高。可为阻尼材料在抗高速冲击领域的应用提供依据。

A composite bulletproof structure composed of damping material,carbon fiber laminate and UHMWPE fiber laminate was proposed.The performance of the structure against 7.62 mm bullet penetration was studied by finite element analysis with LS-DYNA software.By changing the geometric parameters of the structure,its influence on the impact results was studied,and the optimal painting position and thickness of the damping layer were further explored.Results show that the anti-penetration performance of the target was significantly improved by coating surface damping layer,while the anti-impact performance of the target plate was reduced by brushing core damping layer.Under the same area density,comparing with increasing the thickness of carbon fiber laminate or UHMWPE fiber laminate,the target has the highest anti-bullet penetration ability when adding surface damping layers.This work lays a foundation for damping material in the field of anti-high-speed impact.