| 潜艇用高强度钢在程序块载荷作用下的疲劳裂纹扩展 |
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| 引用本文： | 黄小平,石德新,崔宏斌,任慧龙. 潜艇用高强度钢在程序块载荷作用下的疲劳裂纹扩展[J]. 哈尔滨工程大学学报, 2001, 22(2): 6-9 |
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| 作者姓名： | 黄小平 石德新 崔宏斌 任慧龙 |
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| 作者单位： | 哈尔滨工程大学船舶与海洋工程系, |
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| 摘 要： | 对潜艇用高强度钢在程序块载荷作用下的疲劳性能进行了初步研究，以蒙特卡洛模拟潜艇的随机载荷获得的潜下潜深刻深度随机数列为基础，编制了3种程序块载荷谱，进行了恒幅载荷以及程序块载荷作用下的疲劳试验，引入等效循环数来计算一个程序块的当量循环数，从而简化计算过程，简化计算与循环累积计算结果以及试验实测值进行了对比分析，计算结果要比实测值大，且这种偏差的大小和最大加载载荷值有关。
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| 关 键 词： | 潜艇 高强钢 程序块载荷 疲劳裂纹扩展 等效循环数 |
| 文章编号： | 1006-7043(2001)02-0006-04 |
| 修稿时间： | 2000-11-06 |
PROPAGATION OF FATIGUE CRACK IN HIGH-STRENGTH STEEL FOR SUBMARINE UNDER PROGRAM LOADING |
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| Huang Xiao-ping,SHI De-xin,CUI Hong-bin,Ren Hui-long. PROPAGATION OF FATIGUE CRACK IN HIGH-STRENGTH STEEL FOR SUBMARINE UNDER PROGRAM LOADING[J]. Journal of Harbin Engineering University, 2001, 22(2): 6-9 |
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| Authors: | Huang Xiao-ping SHI De-xin CUI Hong-bin Ren Hui-long |
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| Abstract: | Presents the fatigue test of the high-strength steel for submarine with the random serial numbers of the diving depth of submarine, obtained from the simulation of the random load of submarine by Monto Carlo's method, under constant amplitude loading and program loading respectively, and the concept of equivalent alteration number for simplifying the calculation,which results in comparison with that calculated by cumulating calculation and the experiment data, and concludes that the calculated values are higher than the experiment data, and the difference between them is related to the maximum load applied. |
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| Keywords: | submarine high_strength steel program loading fatigue crack propagation equivalent alteration number |
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