| 石英陶瓷导弹天线罩材料延迟断裂行为的研究 |
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| 引用本文： | 胡伟,赵中坚,王萍萍,邬浩,雷景轩.石英陶瓷导弹天线罩材料延迟断裂行为的研究[J].佛山陶瓷,2012(3):35-37. |
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| 作者姓名： | 胡伟 赵中坚 王萍萍 邬浩 雷景轩 |
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| 作者单位： | 上海玻璃钢研究院有限公司,上海,201404 |
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| 摘 要： | 通过保载试验研究了石英陶瓷导弹天线罩材料延迟断裂行为的特性。试验表明,石英陶瓷材料在低于其断裂强度的恒定载荷作用下,内部微裂纹存在慢速扩展的现象,微裂纹扩展速度与载荷大小密切相关;在低于材料断裂强度约50%左右的载荷下,在300s的保载时间内,石英陶瓷材料试样内部裂纹没有产生明显的裂纹扩展现象。
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| 关 键 词： | 石英陶瓷 延迟断裂 保载 裂纹扩展 |
Study on Delay Fracture Behaviors of Silica Ceramic Radome Material |
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| HU Wei,ZHAO Zhong-jian,WANG Ping-ping,WU Hao,LEI Jing-xuan.Study on Delay Fracture Behaviors of Silica Ceramic Radome Material[J].Foshan Ceramics,2012(3):35-37. |
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| Authors: | HU Wei ZHAO Zhong-jian WANG Ping-ping WU Hao LEI Jing-xuan |
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| Affiliation: | (Shanghai FRP Research Institute Co.,Ltd. Shanghai 201404, China) |
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| Abstract: | Studied on the characters of delay fracture behaviors of silica ceramic missile radome material by load holding test. The result shows that crack inside silica ceramic material expand slowly under a load less than its breaking strength. The crack expand velocity have a close relation to the loading. Under a load 50% less than its breaking strength, crack inside silica ceramic material did not expand obviously in 300 second load holding time. |
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| Keywords: | silica ceramic delay fracture load holding crack expanding |
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