随着弹体的侵彻能力逐渐增强,复合防弹装甲成为不可或缺的装备之一。基于ANSYS建立了陶瓷/纤维/阻尼复合防弹靶板的冲击有限元模型,揭示了材料参数和几何参数对复合防弹靶板的影响规律,利用多目标遗传算法优化了碳化硅陶瓷/碳纤维/超高分子量聚乙烯纤维/背层阻尼复合防弹靶板结构,并通过实验验证了优化设计结果的可信性。结果表明:同面密度条件下,涂刷一定厚度背层阻尼对靶板防弹性能的提升较为显著;采用遗传算法优化后的复合防弹靶板结构为:6.9mm碳化硅陶瓷/4.8mm碳纤维层合板/6.0mm超高分子量聚乙烯(UHMWPE)纤维层合板/1.1mm阻尼,面密度为36.236kg/m2。相同防弹性能条件下,与陶瓷/装甲钢结构靶板相比,优化后的靶板面密度降低超过49%。
With the gradual enhancement of the penetration ability of the projectile,the composite bulletproof armor has become one of the indispensable equipment.Based on ANSYS,the impact finite element model of ceramic/fiber/damping composite target plate was established.The effects of material parameters and geometric parameters on the composite target plate were revealed.The structure optimization of silicon carbide ceramic/carbon fiber/UHMWPE fiber/back damping composite target plate was carried out by multi-objective genetic algorithm.The credibility of the optimized design result was verified by experiments.The results showed that under the condition of the same areal density,the bulletproof performance of the target plate was significantly improved by applying a certain thickness of back layer damping.The structure of the composite bulletproof target optimized by genetic algorithm was as follows:6.9mm silicon carbide ceramic/4.8mm carbon fiber laminate/6.0mm UHMWPE fiber laminate/1.1mm damping,with an areal density of 36.236kg/m2.Under the same bulletproof performance conditions,compared with the ceramic/armored steel structure target,the areal density of the optimized target was reduced by more than 49%.
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基金资助
国家自然科学基金(52075280);山东华宇工学院2021年校级协同创新中心(智能装备技术研发协同创新中心)(鲁华宇政字〔2021〕165号)
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