Improving shear strength of carbon fiber composite honeycombs with the surface microprinting technology
Improving shear strength of carbon fiber composite honeycombs with the surface microprinting technology
复制标题
利用表面微印刷技术提高碳纤维复合材料蜂窝体的剪切强度
DOI：
10.1016/j.compstruct.2022.116420
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发表时间：
2022-11
影响因子：
6.3
通讯作者：
Linzhi Wu
中科院分区：
文献类型：
--
作者：
Zengxian Wang;Xiaojian Chen;Guocai Yu;Jian Deng;Lijia Feng;Linzhi Wu
碳纤维增强塑料（CFRP）蜂窝结构由于具有高比强度和比刚度，在航空航天领域得到了广泛的应用。然而，CFRP蜂窝结构的抗剪强度较低，限制了其进一步的应用。本文研究了提高CFRP板表面粘结强度的表面处理方法。结果表明，表面微印刷技术（SMT）是一种值得推荐的CFRP板表面处理方法，可用于提高蜂窝夹芯结构的面板-芯材（面板与芯材之间）和芯材-芯材（蜂窝壁之间）的粘结强度。同时，建立了CFRP蜂窝结构的力学模型，明确推导了CFRP蜂窝结构抗剪强度的理论预测公式。并与剪切试验进行了对比分析和验证。揭示了该表面处理方法的强化机理。试验结果表明，表面贴附处理方法能显著提高CFRP蜂窝夹层结构的抗剪强度，为CFRP蜂窝夹层结构在航空航天领域的应用提供了技术依据和指导。
Carbon fiber reinforced plastics (CFRP) honeycomb structures are widespreadly applied in aerospace and aeronautical sectors due to their high specific strength and stiffness. However, the low shear strength of CFRP honeycomb structures limits its further application. In this paper, surface treatment methods for improving surface bonding strength of CFRP plates are studied. The results show that the surface microprinting technology (SMT) is a recommended surface treatment method for CFRP panels and can be used to improve the bonding strength among facesheet-core (between facesheets and cores) and core-core (among the honeycomb walls) of honeycomb sandwich structure. Meanwhile, the mechanical model of CFRP honeycomb structure is established, the theoretical prediction formula of shear strength of CFRP honeycomb structure is explicitly deduced. And further analysis and verification were conducted compared to shear tests. The strengthening mechanism of the surface treatment method is then revealed. The experimental results show that the treatment method of SMT can greatly improve the shear strength of CFRP honeycomb sandwich structure and provide technical database and guidelines for its application in the aerospace and aeronautical fields.
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DOI：
10.1115/1.1289141
发表时间：
2000-10
影响因子：
1.2
作者：
U. Vaidya;A. Palazotto;L. Gummadi
通讯作者：
U. Vaidya;A. Palazotto;L. Gummadi
短芳纶纤维界面增强碳纤维泡沫铝夹层结构的能量吸收
影响因子：
9.1
作者：
Sun, Zhi;Hu, Xiaozhi;Chen, Haoran
通讯作者：
Chen, Haoran
影响因子：
13.1
作者：
Buchmann, Christopher;Langer, Sebastian;Drechsler, Klaus
通讯作者：
Drechsler, Klaus
影响因子：
2.2
作者：
Fischer, F.;Kreling, S.;Dilger, K.
通讯作者：
Dilger, K.
影响因子：
3.1
作者：
M. Bernard;P. Lagacé
通讯作者：
M. Bernard;P. Lagacé