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| 二维C/SiC-ZrC复合材料的低速冲击损伤研究 | |
| 引用本文： | 皮慧龙,张宝鹏,于新民,刘伟,金鑫. 二维C/SiC-ZrC复合材料的低速冲击损伤研究[J]. 无机材料学报, 2020, 35(12): 1327-1332. DOI: 10.15541/jim20200138 |
| 作者姓名： | 皮慧龙 张宝鹏 于新民 刘伟 金鑫 |
| 作者单位： | 1. 西北工业大学 超高温结构复合材料重点实验室, 西安 710072 2. 航天特种材料及工艺技术研究所, 北京 100074 |
| 摘 要： | 通过二维C/SiC-ZrC复合材料的低速冲击、冲击后拉伸试验以及CT扫描方法,研究了不同冲击能量对材料冲击损伤特征及拉伸性能的影响。结果表明C/SiC-ZrC复合材料具有较高的冲击损伤容限,在15～24 J能量范围内的损伤状态主要表现为穿透损伤。随着冲击能量的增大,材料名义拉伸强度的下降趋于平缓,最大降幅约为25%。冲击主要造成冲击区域附近的复合材料发生分层和纤维断裂损伤,冲击区域以外未发生明显的损伤和破坏。 |
| 关 键 词： | C/SiC-ZrC 复合材料 冲击 剩余拉伸强度 |
| 收稿时间： | 2020-03-17 |
| 修稿时间： | 2020-04-13 |
Damage Characteristics of 2D C/SiC-ZrC Composites under Low Velocity Impact |
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| PI Huilong,ZHANG Baopeng,YU Xinmin,LIU Wei,JIN Xin. Damage Characteristics of 2D C/SiC-ZrC Composites under Low Velocity Impact[J]. Journal of Inorganic Materials, 2020, 35(12): 1327-1332. DOI: 10.15541/jim20200138 | |
| Authors: | PI Huilong ZHANG Baopeng YU Xinmin LIU Wei JIN Xin |
| Affiliation: | 1. Science and Technology on Thermostructure Composite Materials Laboratory, Northwestern Polytechnical University, Xi’ an 710072, China 2. Aerospace Institute of Advanced Materials & Processing Technology, Beijing 100074, China |
| Abstract: | The effects of impact energy on damage characteristics and tensile properties of 2D C/SiC-ZrC composites were studied by low-speed impact, post-impact tensile tests and the CT scanning methods. The results indicated that C/SiC-ZrC composites had a high impact damage tolerance. The damage state of the composites in the energy range of 15-24 J was mainly shown as penetrating damage. When the impact energy increased within the range of 15-24 J, the nominal tensile strength of C/SiC-ZrC composites reduced slowly, with a maximum decrease of around 25%. The impact mainly caused lamination and fiber fracture damage near the impact areas. However, the impact damage was not observed out of the impact areas. |
| Keywords: | C/SiC-ZrC ceramic matrix composites impact residual tensile strength |
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