Dynamic response and anti-penetration performance of multi-layered heterogeneous composite structure
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摘要: 为研究多层异质复合结构动力学响应及抗侵彻性能，利用霍普金森试验装置，对不同材料排布顺序及含泡沫铝夹芯的多层复合结构进行冲击加载，通过贴在入射杆和透射杆上的应变片测得入射波、反射波、透射波波形，验证数值仿真模型正确性；结合数值模拟，研究不同结构对试件内部应力波传播特性和应力场分布影响规律；依据复合结构动力学响应特征，设计复合靶板并进行抗侵彻试验，分析靶板塑性变形特征及抗侵彻耗能机制；通过数值模拟分析泡沫铝夹芯厚度对防护性能影响。结果表明，装甲钢后置复合结构及含泡沫夹芯结构有助于减缓应力集中，减小陶瓷损伤面积；泡沫铝夹芯过厚难以为靶板变形提供支撑，降低抗侵彻阻力；五种夹芯厚度h=2 mm、h=5 mm、h=10 mm、h=20 mm、h=30 mm中，h=10 mm对应多层异质复合靶防护性能最优。Abstract: In order to study the dynamic response and anti-penetration performance of multi-layered heterogeneous composite structures, Hopkinson's test equipment was used to perform impact loading on the multilayer composite structures with different material arrangement sequences and aluminum foam cores. The waveforms of the incident wave, reflected wave, and transmitted wave measured by the strain gauges on the incident rod and the transmission rod were used to verify the correctness of the numerical simulation model. Combined with numerical simulation, the influence of different structures on the stress wave propagation characteristics and the stress field distribution of the specimen was studied. According to the characteristics of the dynamic response of composite structures, composite targets were designed and subjected to an anti-penetration test. The plastic deformation characteristics of the target plate and the mechanism of anti-penetration energy dissipation were analyzed. The effect of thickness of aluminum foam sandwich on protection performance was analyzed by numerical simulation. The results show that the armored steel post-composite structure and foam sandwich structure can help to reduce stress concentration and reduce the area of ceramic damage. Aluminum foam cores are too thick to provide support for deformation of the target board and increase resistance to penetration. In the five kinds of aluminum foam thickness h=2 mm, h=5 mm, h=10 mm, h=20 mm and h=30 mm, multi-layer heterogeneous target board with h=10 mm has the best protective performance.
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Keywords:
- structure mode /
- dynamic response /
- composite target plate /
- penetration /
- numerical simulation
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期刊类型引用(3)
1. 张彬，彭刚，冯家臣，王绪财，王伟，陈春晓，高波，卢振宇. 弹道侵彻下透明复合装甲动态变形参数的测量分析. 工程塑料应用. 2022(09): 121-125+131 . 
百度学术
2. 王荣惠，徐井利，张海云，刘岩，高营营，郭建芬，张建芹，孙魁远，梁国伟. 纤维增强复合材料分层损伤失效模拟计算方法. 工程塑料应用. 2022(12): 74-79 . 百度学术
3. 刘平，王相玉，黄舟. 泡沫填充蜂窝材料动态力学性能的物质点法模拟. 复合材料学报. 2020(09): 2230-2239 . 本站查看
其他类型引用(4)
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