A multiscale mechanical model for materials based on virtual internal bond theory | |
Zhang Zhennan; Li Yonghe; Ge Xiurun | |
刊名 | ACTA MECHANICA SOLIDA SINICA
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2006 | |
卷号 | 19期号:3页码:196-202 |
关键词 | Virtual Multi-dimensional Internal Bond Material Property Dimensionality Multiscale Modeling Molecular Dynamics Virtual Internal Bond |
ISSN号 | 0894-9166 |
DOI | 10.1007/s10338-006-0624-6 |
英文摘要 | Only two macroscopic parameters are needed to describe the mechanical properties of linear elastic solids, i.e. the Poisson's ratio and Young's modulus. Correspondingly, there should be two microscopic parameters to determine the mechanical properties of material if the macroscopic mechanical properties of linear elastic solids are derived from the microscopic level. Enlightened by this idea, a multiscale mechanical model for material, the virtual multi-dimensional internal bonds (VMIB) model, is proposed by incorporating a shear bond into the virtual internal bond (VIB) model. By this modification, the VMIB model associates the macro mechanical properties of material with the microscopic mechanical properties of discrete structure and the corresponding relationship between micro and macro parameters is derived. The tensor quality of the energy density function, which contains coordinate vector, is mathematically proved. From the point of view of VMIB. the macroscopic nonlinear behaviors of material could be attributed to the evolution of virtual bond distribution density induced by the imposed deformation. With this theoretical hypothesis, as an application example, a uniaxial compressive failure of brittle material is simulated. Good agreement between the experimental results and the simulated ones is found. |
WOS研究方向 | Materials Science ; Mechanics |
语种 | 英语 |
出版者 | SPRINGER HEIDELBERG |
WOS记录号 | WOS:000243950100002 |
内容类型 | 期刊论文 |
源URL | [http://119.78.100.198/handle/2S6PX9GI/3152] ![]() |
专题 | 岩土力学所知识全产出_期刊论文 |
作者单位 | Shanghai Univ, Dept Civil Engn; Shanghai Univ, Shanghai Inst Appl Math & Mech; Shanghai Jiao Tong Univ, Inst Geotech Engn; Chinese Acad Sci, Inst Rock & Soil Mech |
推荐引用方式 GB/T 7714 | Zhang Zhennan,Li Yonghe,Ge Xiurun. A multiscale mechanical model for materials based on virtual internal bond theory[J]. ACTA MECHANICA SOLIDA SINICA,2006,19(3):196-202. |
APA | Zhang Zhennan,Li Yonghe,&Ge Xiurun.(2006).A multiscale mechanical model for materials based on virtual internal bond theory.ACTA MECHANICA SOLIDA SINICA,19(3),196-202. |
MLA | Zhang Zhennan,et al."A multiscale mechanical model for materials based on virtual internal bond theory".ACTA MECHANICA SOLIDA SINICA 19.3(2006):196-202. |
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