摘要
蜂窝夹层结构受到面外载荷时,蒙皮与蜂窝芯协同抵抗变形,通过发生变形来吸收面外载荷的残余冲击能,发生损伤并产生裂纹。蜂窝芯的面外力学性能的提高,对于蜂窝芯整体结构在受到面载荷冲击时的抗压缩能力的提高将起到至关重要的作用。通过试验测试与仿真结果探究夹芯高度、蜂窝壁厚及胞元尺寸等影响因素对蜂窝芯面外压缩力学行为的影响,并深入分析其受面外压缩力时的变形过程与失效机理。结果表明:在面外压缩载荷下,蜂窝壁厚和胞元尺寸对蜂窝芯的力学性能影响较大,蜂窝芯的失效模式主要是蜂窝胞壁的屈曲、折叠和局部弯曲变形。研究成果可为蜂窝夹层结构在受到面外压缩载荷的分析提供一定参考。
When subjected to out-of-plane loads,the honeycomb sandwich structure resists deformation through the cooperative action of the skin and honeycomb core.It absorbs the residual impact energy of the out-of-plane load by deforming,sustaining damage and developing cracks.Enhancing the out-of-plane mechanical properties of honeycomb cores will play a crucial role in improving the overall structure's resistance to compression when subjected to impact loads applied across its surface.The influence of key factors−such as core height,honeycomb wall thickness,and cell size−on the out-of-plane compressive mechanical behavior of honeycomb cores through experimental testing and simulation results is investigated.It also provides an in-depth analysis of the deformation process and failure mechanism when subjected to out-of-plane compressive forces.The results indicate that under out-of-plane compressive loading,the thickness of the honeycomb walls and the dimensions of the cells significantly influence the mechanical properties of the honeycomb core.The primary failure modes of the honeycomb core involve buckling,folding,and localized bending deformation of the honeycomb cell walls.The research findings can provide valuable reference for analyzing honeycomb sandwich structures subjected to out-of-plane compressive loads.
作者
骆晓萌
吴泰辉
郑菊艳
LUO Xiaomeng;WU Taihui;ZHENG Juyan(Shanghai Shipbuilding Technology Research Institute,Shanghai 200032,China;Wuxi Orient Software Technology Co.,Ltd.,Wuxi 214000,Jiangsu,China)
出处
《船舶标准化工程师》
2026年第1期85-91,97,共8页
Ship Standardization Engineer
关键词
蜂窝芯
蜂窝结构参数
面外冲击
力学性能
失效机理
honeycomb core
honeycomb structure parameter
out-of-plane impact
mechanical property
failure mechanism
