| Zr基块体非晶合金屈服行为及屈服准则研究 |
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| 引用本文： | 陈德民.Zr基块体非晶合金屈服行为及屈服准则研究[J].装甲兵工程学院学报,2010,24(1). |
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| 作者姓名： | 陈德民 |
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| 作者单位： | 装甲兵工程学院,机械工程系,北京,100072 |
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| 摘 要： | 为了明确块体非晶合金屈服行为与屈服准则的关系,对非晶合金屈服强度间相互关系以及试验中拉伸和压缩断裂面与最大剪应力作用的45°倾斜面的偏离角度进行分析,应用滑移线间断场理论和Mises屈服条件计算出拉伸颈缩断裂面与载荷轴夹角和块体非晶合金实验结果的一致性,利用Coulomb屈服条件计算出的单轴压缩断裂面倾斜角与实验结果相吻合,确定块体非晶合金在不同应力状态下遵循不同的屈服准则:在拉伸条件下该块体非晶合金遵循Mises屈服准则;在压缩条件下遵循Coulomb屈服准则。
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| 关 键 词： | 块体非晶 Mises屈服准则 Coulomb屈服准则 滑移线间断场 |
Research on Yield Behavior and Criterion of Zr-base Bulk Amorphous Alloy |
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| CHEN De-min.Research on Yield Behavior and Criterion of Zr-base Bulk Amorphous Alloy[J].Journal of Armored Force Engineering Institute,2010,24(1). |
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| Authors: | CHEN De-min |
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| Institution: | CHEN De-min(Department of Mechanical Engineering,Academy of Armored Force Engineering,Beijing 100072,China) |
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| Abstract: | In order to define the relations between yield behavior and yield criterion of bulk amorphous alloys, analysis and research have been carried out for the relations of yield strengths and the angle which fracture plane deviates from the 45° plane of the maximum shear stress in tensile and compressive test. Tensile fracture angle is consistent to the result calculated by the theory of disconnected slip line field and Mises yield condition. Compressive fracture angle is consistent to the result calculated by C... |
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| Keywords: | bulk metallic glass Mises yield criterion Coulomb yield criterion theory of disconnected slip line field |
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