| 王行宁,郭彦峰*,付云岗,夏荣厚,王慧超.纸瓦楞-蜂窝复合夹层结构的静态缓冲性能研究[J].实验力学,2019,34(5):853~863 |
| 纸瓦楞-蜂窝复合夹层结构的静态缓冲性能研究 |
| Cushioning performance of composite sandwich structures with paper corrugation and honeycomb cores under static compression |
| 投稿时间：2018-04-17 修订日期：2018-06-21 |
| DOI：10.7520/1001-4888-18-076 |
| 中文关键词: 复合夹层结构 纸瓦楞 纸蜂窝 静态压缩 缓冲性能 |
| 英文关键词:composite sandwich structures paper corrugation paper honeycomb static compression cushioning performance |
| 基金项目:国家自然科学基金项目(51345008)、西安市科技计划项目(2017080CG/RC043(XALG024))和陕西省重点研发计划一般项目(2018GY-191)资助 |
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| 中文摘要: |
| 针对纸瓦楞-蜂窝复合夹层结构的缓冲吸能特性,实验分析了正弦瓦楞夹层结构、六边蜂窝夹层结构以及复合夹层结构的静态压缩特性和变形模式，计算了总吸能、比吸能、单位体积和单位面积吸能，研究了压缩速率、瓦楞夹层楞型、蜂窝夹层厚度对复合夹层结构缓冲性能的影响规律。结果发现，纸瓦楞-蜂窝复合夹层结构是逐层压溃，瓦楞夹层先压溃，其次是蜂窝夹层；压缩速率的变化对这种复合夹层结构的缓冲性能影响不明显；在相同压缩速率条件下，改变瓦楞夹层楞型和蜂窝夹层厚度对这种复合夹层结构的能量吸收影响较大，由惯性矩较大的瓦楞夹层与厚度较高的蜂窝夹层组成的纸瓦楞-蜂窝复合夹层结构的缓冲性能良好。 |
| 英文摘要: |
| Aiming at the cushioning performance and energy absorption of the composite sandwich structures with paper corrugation and honeycomb cores, the static compression behaviors and deformation modes of sinusoidal corrugation sandwich structure, regular hexagonal honeycomb sandwich structure and their composite sandwich structures are analyzed experimentally. The values of the total energy absorption, specific energy absorption, unit volume and unit area energy absorption of the composite sandwich structures are calculated, and the influences of compression rate, corrugation flute and thickness of honeycomb core on the cushioning performance of the composite sandwich structures are also investigated. The results show that, the composite sandwich structures with paper corrugation and honeycomb cores are crushed layer by layer due to the difference of the yield strengths of sandwiches, and the honeycomb cores are crushed after the collapsing of corrugation cores. The influence of static compression rate on the cushioning performance of the composite sandwich structure with paper corrugation and honeycomb core is not obvious. Under the same condition of compression rates, the changes of corrugation flute and the thickness of honeycomb have significant influences on the energy absorption of these composite sandwich structures. Moreover, the composite sandwich structures consisting of paper corrugation sandwich with high inertia moment and honeycomb sandwich with high thickness have favorable cushioning performance. |
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