| 刘元海,赵连红,张红飞,李孟思,金涛,王浩伟.单轴拉伸条件下先进增强结构力学性能研究[J].装备环境工程,2020,17(12):1-6. LIU Yuan-hai,ZHAO Lian-hong,ZHANG Hong-fei,LI Meng-si,JIN Tao,WANG Hao-wei.Mechanical Properties of Advanced Reinforced Structures under Uniaxial Tension[J].Equipment Environmental Engineering,2020,17(12):1-6. |
| 单轴拉伸条件下先进增强结构力学性能研究 |
| Mechanical Properties of Advanced Reinforced Structures under Uniaxial Tension |
| 投稿时间：2020-03-29 修订日期：2020-04-30 |
| DOI：10.7643/issn.1672-9242.2020.12.001 |
| 中文关键词: 先进增强结构 单轴拉伸作用 应力水平 损伤容限性能 |
| 英文关键词:advanced reinforced structure uniaxial tensile action stress level damage tolerance performance |
| 基金项目: |
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| Author | Institution |
| LIU Yuan-hai | Aviation Key Laboratory of Science and Technology on Structural Corrosion Protection and Control, China Special Vehicle Research Institute, Jingmen 448035, China |
| ZHAO Lian-hong | Aviation Key Laboratory of Science and Technology on Structural Corrosion Protection and Control, China Special Vehicle Research Institute, Jingmen 448035, China |
| ZHANG Hong-fei | Aviation Key Laboratory of Science and Technology on Structural Corrosion Protection and Control, China Special Vehicle Research Institute, Jingmen 448035, China |
| LI Meng-si | Aviation Key Laboratory of Science and Technology on Structural Corrosion Protection and Control, China Special Vehicle Research Institute, Jingmen 448035, China |
| JIN Tao | Aviation Key Laboratory of Science and Technology on Structural Corrosion Protection and Control, China Special Vehicle Research Institute, Jingmen 448035, China |
| WANG Hao-wei | Aviation Key Laboratory of Science and Technology on Structural Corrosion Protection and Control, China Special Vehicle Research Institute, Jingmen 448035, China |
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| 中文摘要: |
| 目的 研究单轴拉伸条件下先进增强结构的力学性能。方法 开展先进增强结构以0.02 mm/s匀速加载至20 000 N的静力拉伸实验，采用应变检测方法获取先进增强结构复合材料结构和金属基体结构的应力应变分布特点，研究先进增强结构对金属基体应力水平的降低程度。结果 在确保先进增强结构完好的情况下，先进增强结构能大幅度降低金属基体结构的应力水平，降低程度约为85%。结论 按照飞机高应力区结构特点和载荷分布特点，合理布置先进增强结构，能增加局部区域的传递路径，减小局部区域的应力水平，提高该区域的疲劳和损伤容限性能。 |
| 英文摘要: |
| The work aims to study mechanical properties of advanced reinforced structures under uniaxial tension. A static tensile test was conducted on an advanced reinforcement structure loaded at a constant speed of 0.02 mm/s to 20 000 N. The strain detection method was applied to obtain the stress and strain distribution characteristics of advanced reinforced composite structure and metal matrix and investigate the extent to which advanced reinforcement structures reduce the stress level of metal substrates. Research showed that the advanced reinforcement structure can greatly reduce the stress level of the metal matrix structure, and the reduction degree was about 85% when the advanced reinforcement structure was intact. According to the structural characteristics and load distribution characteristics of the aircraft high stress zone, the rational arrangement of advanced reinforcement structures can increase the transmission path in the local area, reduce the stress level in the local area and improve the fatigue and damage tolerance performance of the area. |
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