W骨架/Zr基非晶合金复合材料细观胞元重构
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摘要
采用两点概率函数提取W骨架/Zr基非晶合金复合材料的统计特征并重构代表体积单元。结果显示,两点概率函数可以良好的描述复合材料的微细观几何结构特征,并给出了材料呈宏观各向同性的理论依据;获得的代表体积单元与原材料图像拥有相同的几何特征和仿真分析结论,胞元尺寸仅为原材料SEM图像的2.2%,可有效提高有限元仿真的效率。该研究为W骨架/Zr基非晶合金复合材料的研究提供了途径。
The statistical characteristics of Zr-based metallic glass reinforced porous W matrix composite were extracted using two-pointprobability functions. And representative volume elements(RVE) of the composite were reconstructed. The results show that themicro-structural geometric structure characteristics can be described satisfactorily and the theoretical foundation of macro isotropy ofmaterials is approved. Though the RVEs have the same geometric characteristics and simulational analysis results with originalcomposites, RVEs are only 2.2% in the size of original SEM picture, which can increase the efficiency of finite element analysis. A strongtool is developed for the research of Zr-based metallic glass reinforced porous W matrix composite by this work.
The statistical characteristics of Zr-based metallic glass reinforced porous W matrix composite were extracted using two-pointprobability functions. And representative volume elements(RVE) of the composite were reconstructed. The results show that themicro-structural geometric structure characteristics can be described satisfactorily and the theoretical foundation of macro isotropy ofmaterials is approved. Though the RVEs have the same geometric characteristics and simulational analysis results with originalcomposites, RVEs are only 2.2% in the size of original SEM picture, which can increase the efficiency of finite element analysis. A strongtool is developed for the research of Zr-based metallic glass reinforced porous W matrix composite by this work.
引文
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[3]Zhang X Q,Ma L L,Xue Y F et al.Journal of Non-Crystalline Solids[J],2016,436:9
[4]Dai L H,Bai Y L.International Journal of Impact Engineering[J],2008,35:704
[5]Wang J G,Pan Y,Song S X et al.Materials Science&Engineering A[J],2016,615:321
[6]Lee Kyuhong,Lee Sang-Bok,Lee Sang-Kwan et al.Metallurgical and Materials Transactions A[J],2008,39A(6):1319
[7]Zhang Bo,Fu Huameng,Sha Pengfeng et al.Materials Science&Engineering A[J],2013,566:16
[8]Xue Y F,Cai H N,Wang L et al.Materials Science and Engineering A[J],2007,445-446:275
[9]Zhang X Q,Wang L,Xue Y F et al.Materials Science and Engineering:A[J],2013,561:152
[10]Xue Yunfei,Wang Lu,Cheng Huanwu et al.J Mater Sci Technol[J],2010,26(10):908
[11]Xue Y F,Wang L,Cai H N et al.Metallurgical and Materials Transactions A[J],2011,42A(11):3521
[12]Zhang J W,Zhi S J,Sun B.Science China,Technological Sciences[J],2013,56(12):3055
[13]Zhang Chuhan(张楚汉),Tang Xinwei(唐欣薇),Zhou Yuande(周元德)et al.Journal of Hydroelectric Engineering(水力发电学报)[J],2015,34(12):1
[14]Zhang X Q,Xue Y F,Wang L et al.Materials Science&Engineering A[J],2015,643:55
[15]Torquato S.International Journal of Solids and Structures[J],1998,35(19):2385