| 带有典型缺陷的金属蜂窝夹层结构的剩余强度研究 |
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| 引用本文： | 杨凯,刘立武,于开平,孔祥皓.带有典型缺陷的金属蜂窝夹层结构的剩余强度研究[J].固体火箭技术,2011,34(5):652-654,670. |
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| 作者姓名： | 杨凯 刘立武 于开平 孔祥皓 |
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| 作者单位： | 1. 哈尔滨工业大学航天科学与力学系,哈尔滨,150001
2. 哈尔滨工业大学复合材料研究所,哈尔滨,150001 |
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| 摘 要： | 通过对带有典型缺陷的薄壁高温合金蜂窝夹层结构进行侧拉伸和侧压缩、平压缩和三点弯曲等力学性能测试,得到了带有不同缺陷形式的结构在不同载荷形式下结构剩余强度随着缺陷尺寸增大的变化规律.得到的结论为薄壁高温合金蜂窝夹层结构的服役可靠性及其损伤容限体系的建立奠定了必要的实验研究基础.
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| 关 键 词： | 高温合金蜂窝夹层结构 剩余强度 力学性能 典型缺陷 |
Study on the residual strength of metal honeycomb sandwich structure with typical defects |
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| YANG Kai,LIU Li-wu,YU Kai-ping,KONG Xiang-hao.Study on the residual strength of metal honeycomb sandwich structure with typical defects[J].Journal of Solid Rocket Technology,2011,34(5):652-654,670. |
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| Authors: | YANG Kai LIU Li-wu YU Kai-ping KONG Xiang-hao |
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| Institution: | YANG Kai1,LIU Li-wu1,YU Kai-ping1,KONG Xiang-hao2(1.Department of Astronautic Science and Mechanics,Harbin Institute of Technology,Harbin 150001,China,2.Center for Composite Materials and Structures,China) |
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| Abstract: | By mechanical experiments of tension and compression,three-point bending on thin super alloy honeycomb sandwich structure sample with typical defects,the change law of residual strength with defect dimension was obtained while the sandwich structure samples with different defects undergoes different mechanical loads.The obtained conclusions can provide the experimental basis for improving the structural reliability and damage tolerance of the structure. |
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| Keywords: | super alloy honeycomb sandwich structure residual strength mechanical performance typical defect |
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