| J55套管的断裂韧性 |
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| 引用本文： | 马秋荣,张毅.J55套管的断裂韧性[J].理化检验(物理分册),1998,34(9):10-11,28. |
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| 作者姓名： | 马秋荣 张毅 |
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| 作者单位： | 西安石油管材研究所!西安710065 |
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| 摘 要： | 研究了两种Ｊ５５套管的动，静态断裂韧性，表明以静态断裂韧性计算动态断裂韧性是可行的，试验结果也表明动态下材料的脆化倾向增强，动态断裂韧性Ｋ１ｄ明显低于静态Ｋ。
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| 关 键 词： | 断裂韧性 脆化 动态 油井 套管 静态 |
THE FRACTURE TOUGHNESS OF J55 CASING |
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| Ma Qiurong,Zhang Yi.THE FRACTURE TOUGHNESS OF J55 CASING[J].Physical Testing and Chemical Analysis Part A:Physical Testing,1998,34(9):10-11,28. |
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| Authors: | Ma Qiurong Zhang Yi |
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| Affiliation: | Tubular Goods Reseach center of China National Petroleum Corp. |
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| Abstract: | The dynamic and static fracture toughness of two kinds of J55 casing is studied and the test method for dynamic fracture toughness is analyzed and discussed in the paper. The results show that it is practical to calculate the dynamic toughness with the calculating formula of static fracture toughness. The brittle tendency of material increases under dynamic condition and the dynamic fracture toughness K_(id) is clearly lower than the static fracture toughness K_(id). |
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| Keywords: | Fracture toughness Brittle Dynamic fracture toughness |
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