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| 确定海洋平台钢裂纹扩展曲线的快速方法 | |
| 引用本文： | 丁克勤,傅惠民,柳春图.确定海洋平台钢裂纹扩展曲线的快速方法[J].海洋工程,2000,18(1):7-12. |
| 作者姓名： | 丁克勤 傅惠民 柳春图 |
| 作者单位： | 1. 锅炉压力容器检测中心,北京,100013 2. 北京航空航天大学,固体力学所,北京,100083 3. 中国科学院,力学研究所,北京,100080 |
| 摘 要： | 提出了一种确定海洋平台钢裂纹扩展曲线的快速方法。该方法可以综合利用以往的经验数据和当前试验数据确定表面疲劳裂纹扩展速率曲线。与传统的只能利用当前试验数据确定表面疲劳裂纹扩展速率曲线相比。其可利用信息量大幅度增加，所以在精度相同的情况下，可以节省大量试件；而且在试样数一定的情况下。又可大大提高预测精度。文中还给出了海洋平台钢试验对比实例。 |
| 关 键 词： | 海洋平台钢 可靠性 疲劳试验 裂纹扩展曲线 |
| 文章编号： | 1005-9865（2000）01-007-06 |
A method for quickly determining crack growth curve of offshore steel platforms |
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| DING Ke-qin,FU Hui-min,LIU Chun-tu.A method for quickly determining crack growth curve of offshore steel platforms[J].Ocean Engineering,2000,18(1):7-12. | |
| Authors: | DING Ke-qin FU Hui-min LIU Chun-tu |
| Abstract: | A method for quickly determining the crack growth curve of offshore steel platforms is presented in the paper. The information used in the method is much more than that in the traditional methods. With this method, engineers can make full use of the current test data and the previous data while, with the traditional method, engineers can only use the current test data. Thus, fewer specimens are required in this method and the result is more accurate. A comparative study is also made in the paper. |
| Keywords: | offshore steel platform reliability fatigue test crack growth curve |
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