| 45号钢柱体内置裂纹扩展的动态响应 |
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| 引用本文： | 王丽娟,刘立忠,韦东滨.45号钢柱体内置裂纹扩展的动态响应[J].钢铁研究学报,2001,13(2):36-38. |
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| 作者姓名： | 王丽娟 刘立忠 韦东滨 |
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| 作者单位： | 1. Northeastern University,
2. 北京科技大学冶金学院, |
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| 摘 要： | 采用人工预测裂纹方法，分析高速减压条件下45号钢柱体内置裂纹展的动态响应行为，用弹塑性波理论很好地解释了钢体裂纹扩展过程。结果表明，在快速镦粗过程中预制内部裂纹具有稳定扩展特征，塑性等效应变速率εp基本不变。
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| 关 键 词： | 45号钢 圆柱体 内置裂纹扩展 动态响应 高速冲压 镦粗 |
| 文章编号： | 1001-0963(2001)02-0036-03 |
| 修稿时间： | 2000年3月28日 |
Dynamic Respond of Internal Crackle Spread in Steel 45 Cylinder |
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| WANG Li-juan,LIU Li-zhong,WEI Dong-Bin.Dynamic Respond of Internal Crackle Spread in Steel 45 Cylinder[J].Journal of Iron and Steel Research,2001,13(2):36-38. |
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| Authors: | WANG Li-juan LIU Li-zhong WEI Dong-Bin |
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| Abstract: | The dynamic respond behavior of internal crack spread for steel 45 at high impact speed was analysed by artificially manufacturing internal crack and the crack spread mechanism can be explained by the elastic plastic wave theory. The results showed that the internal crack has stable spread characteristics and its plastic strain speed ratio is relatively stable. |
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| Keywords: | steel 45 cylinder internal crack spread dynamic respond analysis |
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