| MB2镁等四种金属材料的本构关系和动态断裂研究 |
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| 引用本文： | 张万甲,张玉松.MB2镁等四种金属材料的本构关系和动态断裂研究[J].爆炸与冲击,1995,15(1):44-53. |
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| 作者姓名： | 张万甲 张玉松 |
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| 作者单位： | 中国工程物理研究院流体物理研究所 |
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| 摘 要： | 采用炸药爆轰－分离飞片加载装置与电容传感技术相结合，由高速示波器连续记录靶板自由面速度剖面，通过波剖面的时间分辨测量，研究了ＭＢ＿２镁、ＬＹ－１２铝、钨合金、２１６９钢四种金属材料的动力学响应特性，给出了这几种材料在弹性－理想塑性模型假设下的本构关系，还给出了它们的动态断裂强度，并对标准化层裂强度与破坏比功、屈服强度之间的相关性进行了分析和讨论。
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| 关 键 词： | 本构关系 动态断裂 金属学 弹性 塑性 动载荷 |
STUDIES ON THE CONSTITUTIONAL RELATIONS AND THE DYNAMIC FRACTRUE FOR FOUR DINDS OF METAL MATERIALS INCLURING MB_2-MAGNESIUM |
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| Zhang Wanjia,Zhang Yusong,Song Chunxiang.STUDIES ON THE CONSTITUTIONAL RELATIONS AND THE DYNAMIC FRACTRUE FOR FOUR DINDS OF METAL MATERIALS INCLURING MB_2-MAGNESIUM[J].Explosion and Shock Waves,1995,15(1):44-53. |
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| Authors: | Zhang Wanjia Zhang Yusong Song Chunxiang |
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| Abstract: | The time-resolved motion of the back surface of the target was monitored using anexplosive driving device and a capacitor gauge technique. The dynamic response charactericticsare studied for the MB_2-magnesium,Ly-12-aluminum,tungsten alloy, 2169-steel.The elastic-ideal plastic constitutional relations and the dynamic fracture strength for these materials are giv-en. The relation between the normalized spall strength and the ratio of the fracturing work as wellas yield strength are discussed in this paper |
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| Keywords: | constitutional relations dynamic fractrue explosive driving device |
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