玻-碳混杂复合材料开孔拉伸力学行为-强度所60周年专刊

张强; 李磊; 黄光启; 谢佳卉; 宋贵宾

doi:10.7527/S1000-6893.2025.32312

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DOI: https://doi.org/10.7527/S1000-6893.2025.32312

玻-碳混杂复合材料开孔拉伸力学行为-强度所60周年专刊

张强 ,
李磊 ,
黄光启 ,
谢佳卉 ,
宋贵宾

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1. 中国飞机强度研究所
2. 强度与结构完整性全国重点实验室

收稿日期: 2025-05-28

修回日期: 2025-07-02

网络出版日期: 2025-07-03

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Open-hole tensile mechanical behavior of carbon/glass hybrid composites

ZHANG Qiang ,
LI Lei ,
HUANG Guang-Qi ,
XIE Jia-Hui ,
SONG Gui-Bin

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Received date: 2025-05-28

Revised date: 2025-07-02

Online published: 2025-07-03

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摘要

玻-碳混杂效应导致复合材料在拉伸过程中过渡界面呈现更为复杂的力学响应。为了研究玻-碳混杂的层间性能，分别设计制作了粘接与未粘接两种试样，并开展了开孔拉伸力学行为研究。通过采用应变计和高速摄像机，对加载过程和破坏瞬间材料力学行为进行了监测；随后，采用有限元仿真，计算层间应力；最后通过理论建模，对层间应力进行了数值推导。结果表明：加载过程中，粘接层存在应力σ3、τ13、τ23，但是根据应变采集和仿真计算结果可知，数值远低于层间强度；试样在发生破坏后，破坏部分材料发生回弹，回弹力与材料弹性模量、最大破坏应变等线性相关，远大于层间最大剪切应力，是导致材料分层的主要原因。

关键词： 玻-碳混杂; 复合材料; 开孔拉伸; 高速摄像; 数值推导

本文引用格式

张强 , 李磊 , 黄光启 , 谢佳卉 , 宋贵宾 . 玻-碳混杂复合材料开孔拉伸力学行为-强度所60周年专刊[J]. 航空学报, 0 : 1 -0 . DOI: 10.7527/S1000-6893.2025.32312

Abstract

Abstract: The carbon/glass hybrid effect causes more complex mechanical responses at the interfaces during the tensile process of composites. In order to study the effect of carbon/glass hybridization on the interlaminar properties, two kinds of specimens, bonded and unbonded, were designed and fabricated, and the tensile mechanical behavior of open-hole was studied. Using strain gauges and high-speed cameras, we monitored the loading process and the mechanical behavior of the materials at the moment of failure. Subse-quently, finite element simulation was used to calculate the interlayer stress. Finally, through theoretical modeling, the interlaminar stress was numerically derived. The results show that there are stresses σ3, τ13 and τ23 in the adhesive layer during the loading process, but according to the strain acquisition and simulation calculation results, the values are lower than the interlaminar strength. After the specimen damaged, destruction of part of the material will rebound. The resilience force is linearly related to the elastic modulus and the maximum failure strain of the material, and is greater than the maximum shear stress between layers, which is the main reason for the delamination failure of the material.

Key words： carbon/glass hybrid; composites; open-hole tensile testing; high-speed imaging; numerical derivation

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