Prediction of long beam bending properties for co-cured honeycomb sandwich structures

doi:10.19936/j.cnki.2096-8000.20250228.005

Abstract

Abstract: The material composition, structural form, and mechanical behavior of honeycomb sandwich structures are more complex compared to laminated structures. In order to improve the accuracy of predicting the mechanical performance for honeycomb sandwich structures, the microscopic structure and mechanical properties of the panels of co-cured honeycomb sandwich structure were analyzed. On this basis, the finite element progressive failure analysis model of long beam bending was established to predict the bending load, deformation, and failure mode. The results show that, compared to the laminate molded separately using the same prepreg, number of plies and curing process, the panels of co-cured honeycomb sandwich structure have a thinner single layer thickness and lower compression strength. The geometric structure and material parameters of the model are determined on this basis, thus ensuring the accuracy of the prediction. Comparison of predicted values with test results for ultimate bending load and the deformation at 445 N, the error values are within ±11%, and the failure location is in good agreement with the experiment.

Key words: honeycomb sandwich structure, co-curing, long beam bending, progressive failure analysis, finite element, performance prediction, composites

CLC Number:

TB332

NIU Fangxu, SUN Chaoming, HE Jing, YIN Hang. Prediction of long beam bending properties for co-cured honeycomb sandwich structures[J]. COMPOSITES SCIENCE AND ENGINEERING, 2025, 0(2): 34-39.

References

[1] 陈静, 邱启艳. 蜂窝夹层结构在飞机上的应用及发展[J]. 新材料产业, 2018(7): 63-67.
[2] 程文礼, 袁超, 邱启艳, 等. 航空用蜂窝夹层结构及制造工艺[J]. 航空制造技术, 2015(7): 96-100.
[3] 贺靖, 杨晓琳, 朱秀迪, 等. Nomex蜂窝夹层复合材料力学性能研究[J]. 复合材料科学与工程, 2020(9): 79-84.
[4] 王燕, 程文礼, 王绍凯. 复合材料蜂窝夹层结构在民用飞机上的应用综述[J]. 纤维复合材料, 2021(2): 73-77.
[5] 张红梅. 弯曲载荷下夹芯复合材料L型节点强度及破坏模式研究[D]. 武汉: 武汉理工大学, 2017.
[6] 马子广, 王卫卫. 复合材料蜂窝夹层结构四点弯曲性能研究[J]. 纤维复合材料, 2019(4): 8-11.
[7] 李响, 潘志宇, 李锐, 等. 轻质高强类蜂窝夹层结构力学性能分析及优化[J]. 机械, 2021, 48(11): 1-9.
[8] BELOUETTAR S, ABBADI A, AZARI Z, et al. Experimental investigation of static and fatigue behaviour of composites honeycomb materials using four point bending tests[J]. Composite Structures, 2009(87): 265-273.
[9] 张剑军, 刘建军, 韩笑. 蜂窝夹层结构复合材料及其研究进展[J]. 化工新型材料, 2021, 49(12): 253-258.
[10] 张超锋, 韩超超, 朱佳佳, 等. 混杂复合三明治结构低速冲击特性及剩余压缩强度研究[J]. 机械强度, 2023, 45(3): 646-652.
[11] 贺利乐, 李书宝, 郑建校, 等. 考虑剪切非线性的复合材料层合板渐进损伤数值模拟[J]. 复合材料科学与工程, 2024(1): 45-53.
[12] 梁嫄. 复合材料结构准静态压剪渐进失效机理研究[D]. 上海: 上海交通大学, 2015.
[13] 魏阜伦, 陈普会. 基于蜂窝芯细观构造的复合材料蜂窝夹层结构仿真分析方法[J]. 江苏航空, 2019(1): 34-37.
[14] 杨稳, 张胜兰, 李莹. 蜂窝夹层结构等效模型研究进展[J]. 复合材料科学与工程, 2020(10): 122-128.
[15] FAN Y, YANG X L, HE J, et al. The variation mechanism of core pressure and its influence on the surface quality of honeycomb sandwich composite with thin facesheets[J]. Journal of Materials Research and Technology, 2021(15): 6113-6124.
[16] 张幻实, 张发, 高丽敏, 等. 复合材料带填充钉孔层压板拉伸载荷下损伤特性分析[J]. 复合材料科学与工程, 2023(3): 89-94.
[17] 肖梦丽, 张勇波, 王治华, 等. 国产碳纤维复合材料开孔拉伸失效分析与预测[J]. 航空动力学报, 2015, 30(12): 2857-2862.
[18] 王力立, 杨胜春, 陈宏, 等. 复合材料强度准则在层合板失效预测中的适用性评估分析[J]. 科学技术与工程, 2019, 19(10): 61-67.