| 船用945钢的动态力学性能研究 |
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| 引用本文： | 姜风春,刘瑞堂,张晓欣.船用945钢的动态力学性能研究[J].兵工学报,2000,21(3):257. |
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| 作者姓名： | 姜风春 刘瑞堂 张晓欣 |
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| 作者单位： | 哈尔滨工程大学,黑龙江哈尔滨,150001 |
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| 摘 要： | 利用 Hopkinson型试验装置和示波冲击实验 ,对船用 945钢的动态力学性能进行了研究。实验结果表明 ,船用 945钢是率敏感材料 ,其动态力学性能明显不同于准静态条件下的力学性能 ,动态载荷作用下 ,材料的动态屈服点升高 ,动态断裂韧性和动态塑性下降。
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| 关 键 词： | 动态力学性能 率敏感材料 动态屈服点 动态断裂韧性 |
A STUDY ON THE DYNAMIC MECHANICAL BEHAVIORS OF SHIP-BUILDING STEEL 945 |
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| Jiang Fengchun,Liu Ruitang,Zhang Xiaoxin.A STUDY ON THE DYNAMIC MECHANICAL BEHAVIORS OF SHIP-BUILDING STEEL 945[J].Acta Armamentarii,2000,21(3):257. |
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| Authors: | Jiang Fengchun Liu Ruitang Zhang Xiaoxin |
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| Abstract: | The dynamic mechanical behaviors of ship building steel 945 are studied by using the Hopkinson and instrumented Charpy impact testing system The results show that steel 945 is a rate sensitive material and its dynamic mechanical behaviors are markedly different from that under a quasi static state The dynamic yield stress rises; the fracture toughness and dynamic plasticity decrease under dynamic loading |
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| Keywords: | dynamic mechanical performance rate sensitive material dynamic yield stress dynamic fracture toughness |
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