| COD参量在压力容器安全评定中的应用 |
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| 引用本文： | 霍立兴,荆洪阳. COD参量在压力容器安全评定中的应用[J]. 天津大学学报(自然科学与工程技术版), 1988, 0(2) |
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| 作者姓名： | 霍立兴 荆洪阳 |
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| 作者单位： | 天津大学机械制造工程系(霍立兴)，天津大学机械制造工程系(荆洪阳) |
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| 摘 要： | 本文通过爆破试验研究了带裂纹容器屈服发生发展机理和断裂参量在加压过程中的变化,按照COD设计曲线对各类缺陷进行了评定。指出:由于对亚临界缺陷COD值存在三个阶段(增加—冻结—增加),所以用这一设计曲线进行安全评定有一定局限性。
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| 关 键 词： | 裂纹张开位移 全面屈服 评定 断裂 设计曲线 |
THE APPLICATION OF THE COD PARAMETER TO THE SAFETY ASSESSMENT ON PRESSURE VESSELS |
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| Huo Lixing Jing Hongyang. THE APPLICATION OF THE COD PARAMETER TO THE SAFETY ASSESSMENT ON PRESSURE VESSELS[J]. Journal of Tianjin University(Science and Technology), 1988, 0(2) |
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| Authors: | Huo Lixing Jing Hongyang |
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| Affiliation: | Department of Mechanical Engineering |
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| Abstract: | The yielding spread and the variation of fracture parameters in pressure loading on cracked containers are investigated by bursting experiments. The different defects are assessed in accordance with the COD design curve. It should be pointed out that there is a limitation to the use of such a curve for safety assessment as the COD values have three--increase-stop-increase--steps for subcritieal defects. |
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| Keywords: | COD general yielding assessment defect fracture design curve |
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