复合材料科学与工程 ›› 2026, Vol. 0 ›› Issue (8): 35-41.DOI: 10.19936/j.cnki.2096-8000.20260828.005

• 基础与力学性能研究 • 上一篇    下一篇

超薄铺层碳纤维增强复合材料面内剪切性能研究

刘雁鹏1, 闫强强1, 赵瑞杰1, 梁绍敏2*, 任明法3   

  1. 1.晋西工业集团有限责任公司 防务装备研究院,太原 030051;
    2.太原理工大学 航空航天学院,太原 030024;
    3.大连理工大学 机械工程学院,大连 116023
  • 收稿日期:2025-06-24 出版日期:2026-08-28 发布日期:2026-09-24
  • 通讯作者: 梁绍敏 (1990—),女,博士,讲师,硕士生导师,研究方向为复合材料结构力学分析,shaominliang@ tyut.edu.cn。
  • 作者简介:刘雁鹏 (1991—),男,博士,工程师,研究方向为复合材料失效机理及结构强度分析。
  • 基金资助:
    国家自然科学基金(12302512)

Study on the in-plane shear properties of ultra-thin-ply carbon fiber reinforced composites

LIU Yanpeng1, YAN Qiangqiang1, ZHAO Ruijie1, LIANG Shaomin2*, REN Mingfa3   

  1. 1. Defence Equipment Research Institute, Jinxi Industrial Group Co., Ltd., Taiyuan 030051, China;
    2. College of Aeronautics and Astronautics, Taiyuan University of Technology, Taiyuan 030024, China;
    3. School of Mechanical Engineering, Dalian University of Technology, Dalian 116023, China
  • Received:2025-06-24 Online:2026-08-28 Published:2026-09-24

摘要: 超薄铺层复合材料具有较常规铺层厚度复合材料更加优异的力学性能。通过±45°层合板拉伸试验,研究了单层层厚分别为24 μm、55 μm、75 μm和100 μm的碳纤维增强复合材料的面内剪切性能;讨论了拉伸载荷作用下,单层厚度对试验件硬化、颈缩以及失效过程的影响;揭示了不同单层厚度层合板的剪切失效机理;获得了剪切强度和剪切模量的定量结果。结果显示,超薄铺层复合材料在剪切载荷作用下表现出更强的渐进损伤现象,强度极限较低,但断裂位移较大。与常规铺层复合材料相比,超薄铺层复合材料剪切强度提高了15.8%,剪切模量提高了8.1%。

关键词: 超薄铺层, 碳纤维增强复合材料, 面内剪切, ±45°层合板拉伸

Abstract: Ultra-thin-ply composites have better mechanical properties than standard thick ply composites. The in-plane shear properties of carbon fiber reinforced composites with ply thickness of 24 μm, 55 μm, 75 μm and 100 μm are studied by tensile tests of ±45° laminates. The influence of ply thickness on hardening, necking and failure processes of specimens under loading is discussed. The shear failure mechanisms of laminates with differentply thickness are revealed. Quantitative results for shear strength and shear modulus are obtained. Results show that ultra-thin-ply composites exhibit stronger progressive damage phenomenon under shear load, with lower strength limit but larger fracture displacement. The shear strength of ultra-thin-ply composites is 15.8% higher than that of standard thick ply composites, and the shear modulus increases by 8.1%.

Key words: ultra-thin-ply, carbon fiber reinforced composites, in-plane shear, ±45° laminates tensile

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