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《Journal of Beijing Institute of Civil Engineering and Architecture》 2006-01
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Multi-scale Mechanical Behavior of Metallic Materials

Qi Chengzhi~1,Liu Chao~1,Qian Qihu~2 (1.Dept.of Civic Engineering,Beijing 100044;2.Commission of Science and Technology of the General Staff of PLA,Beijing 100857)  
The deformation and failure of metals are complex multi-scale processes.The behavior of materials at microscopic level determines the intrinsic physical mechanism of macroscopic behavior.The intermediate between micro-and macroscopic levels meso-scopic level plays a role of bridge.The behavior of materials at mesoscopic level is key to the macroscopic behavior.In this paper some aspects of the study of multi-scale behavior of metallic materials are reviewed,these aspects include the description methods at different levels,the multi-scale dynamic behavior of metals,the application of nonlinear dynamics in the description of the behavior of metals,the application of differential geometry and gauge field theory,and the application of different numerical methods at different levels.At last and the remaining issues in need of further research are proposed.
【Fund】: 国家自然科学基金重大项目(50490270-50490275)
【CateGory Index】: TU51
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1 Qi Chengzhi (Civil Engineering Department, Beijing Institute of Architecture and Civil Engineering, Beijing, 100044) Qin Qiahu (Division of Civil Hydraulic and Civil Engineering, Chinese Engineering Academy, Beijing, 100038);PHYSICAL KINETIC MECHANISM OF EVOLUTION OF DEFORMATION AND DAMAGE OF MATERIALS[J];Acta Mechanica Solida Sinica;2002-03
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