| 含孔洞大块非晶合金变形行为的数值研究 |
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| 引用本文： | 徐剑晴,王宇. 含孔洞大块非晶合金变形行为的数值研究[J]. 中国科学技术大学学报, 2011, 41(12) |
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| 作者姓名： | 徐剑晴 王宇 |
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| 作者单位： | 中国科学技术大学近代力学系,中国科学院材料力学行为和设计重点实验室,安徽合肥230027 |
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| 基金项目： | 国家自然科学基金(10772169); 中央高校基本科研业务费专项资金资助 |
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| 摘 要： | 建立能够描述静水压力影响和塑性体积膨胀的率相关的大块非晶合金本构模型.通过编写ABAQUS材料用户子程序VUMAT,对含不同形态孔洞的Zr基大块非晶合金的变形行为进行有限元分析,并对其细观变化规律进行研究.
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| 关 键 词： | 大块非晶合金 本构模型 孔洞 |
Simulation of the effects of voids on the deformation behavior of bulk amorphous alloys |
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| XU Jianqing , WANG Yu. Simulation of the effects of voids on the deformation behavior of bulk amorphous alloys[J]. Journal of University of Science and Technology of China, 2011, 41(12) |
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| Authors: | XU Jianqing WANG Yu |
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| Affiliation: | XU Jianqing,WANG Yu(Department of Modern Mechanics,CAS Key Laboratory of Mechanical Behavior and Design of Materials,University of Science and Technology of China,Hefei 230027,China) |
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| Abstract: | A rate-dependent constitutive model for the deformation behavior of amorphous alloys with the effects of hydrostatic-pressure sensitivity and plastically-dilatancy was developed.The constitutive model was implemented in a finite element analysis to study the effects of the voids on the deformation behavior of bulk amorphous alloys by writing a user subroutine in ABAQUS/VUMAT.The mesoscope evolvement law of the deformation was also studied. |
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| Keywords: | bulk amorphous alloys constitutive model voids |
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