采用人工预制裂纹方法，分析高速冲压条件下45号钢柱体内置裂纹扩展的动态响应行为，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p基本不变。
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.
参考文献
| [1] | Anderson H .A Finite Element Representation of Stable Crack Growth[J].Journal of The Mechanics and Physics of Solids,1973,21(05):337-356. |
| [2] | 赖祖涵.金属的晶体缺陷与力学性质[M].北京:冶金工业出版社,1988 |
| [3] | 王礼立;朱兆祥.应力波基础[M].北京:国防工业出版社,1985 |
| [4] | 黄克智;余寿文.弹塑性断裂力学[M].北京:清华大学出版社,1985 |
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