| 惠旭龙,刘小川,白春玉,舒挽,葛宇静.碳纤维增强复合材料的中低应变率力学性能试验研究[J].装备环境工程,2018,15(9):81-84. HUI Xu-long,LIU Xiao-chuan,BAI Chun-yu,SHU Wan,GE Yu-jing.Mechanical Properties of Carbon Fiber Reinforced Composite Materials under Intermediate Strain Rate[J].Equipment Environmental Engineering,2018,15(9):81-84. |
| 碳纤维增强复合材料的中低应变率力学性能试验研究 |
| Mechanical Properties of Carbon Fiber Reinforced Composite Materials under Intermediate Strain Rate |
| 投稿时间：2018-06-25 修订日期：2018-09-25 |
| DOI：10.7643/ issn.1672-9242.2018.09.016 |
| 中文关键词: 固体力学 碳纤维增强复合材料 中应变率 应变率效应 失效特性 |
| 英文关键词:solid mechanics carbon fiber reinforced composite materials intermediate strain rate strain rate effect failure behavior |
| 基金项目:国家自然科学基金（11702260） |
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| Author | Institution |
| HUI Xu-long | Aviation Key Laboratory of Science and Technology on Structures Impact Dynamics, Aircraft Strength Research Institute of China, Xi'an 710065, China |
| LIU Xiao-chuan | Aviation Key Laboratory of Science and Technology on Structures Impact Dynamics, Aircraft Strength Research Institute of China, Xi'an 710065, China |
| BAI Chun-yu | Aviation Key Laboratory of Science and Technology on Structures Impact Dynamics, Aircraft Strength Research Institute of China, Xi'an 710065, China |
| SHU Wan | Aviation Key Laboratory of Science and Technology on Structures Impact Dynamics, Aircraft Strength Research Institute of China, Xi'an 710065, China |
| GE Yu-jing | Aviation Key Laboratory of Science and Technology on Structures Impact Dynamics, Aircraft Strength Research Institute of China, Xi'an 710065, China |
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| 中文摘要: |
| 目的 研究碳纤维增强复合材料的中低应变率力学性能。方法 利用电子万能试验机和高速液压伺服材料试验机对[(±45°)]4s和[(±45°)]8两种铺层碳纤维增强复合材料进行常温下准静态和中低应变率力学性能试验，得到不同应变率下的应力应变曲线和失效参数。结果 在应变率6.7×104~500 s1范围内，两种铺层材料均具有明显的应变率强化效应，材料失效应力随应变率的提高而增大。两种铺层材料均发生纤维断裂失效和局部的分层失效，但[(±45°)]4s铺层发生燕尾形失效，[(±45°)]8铺层发生剪切失效。结论 获得了碳纤维增强复合材料在不同应变率下的力学性能参数，可为复合材料飞机结构的抗冲击设计和仿真分析提供准确的材料参数。 |
| 英文摘要: |
| Objective To study mechanical properties of carbon fiber reinforced composite materials under intermediate strain rate. Methods Tests for two kinds of carbon fiber reinforced composite materials ([(±45°)]4s and[(±45°)]8) under quasi-static and intermediate strain rate were performed with an electronic universal testing machine and a high velocity hydraulic servo-testing machine at room temperature to obtain the stress-strain curves and failure parameters under different strain rates. Results Both materials had obvious strain rate strengthening effect in the range of 6.7×104s1~500s1; the failure strength of the material increased with the increase of strain rate. In addition, fiber fracture failure and local delamination failure occurred to both materials; but the failure mode for [(±45°)]4s stack was dovetail, and the failure mode for [(±45°)]8 stack was shear. Conclusion Mechanical performance parameters of carbon fiber reinforced composite material under different strain rate are obtained. They could provide accurate material parameters for shock resistance design and simulation analysis of composite material aircraft structures. |
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