Study of the damage-induced anisotropy of quasi-brittle materials using the component assembling model
文献类型：会议论文
| 作者 | Zhang J(张晶); Liang NG(梁乃刚) ; Deng SC(邓守春); Liu JX(刘金兴); Liu XY(刘晓宇); Fu Q(付强); Zhang J
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| 出版日期 | 2008 |
| 会议名称 | 7th World Congress on Computational Mechanics |
| 会议日期 | JUL 16-22, 2006 |
| 会议地点 | Los Angeles, CA |
| 通讯作者邮箱 | zhangj@lnm.imech.ac.cn |
| 关键词 | Anisotropic Damage Quasi-Brittle Materials Initial Damage Surface Uniaxial Tension Non-Proportional Loading Component Assembling Model Continuum Mechanics Solids Microcracks Formulation Simulation Fracture Issues |
| 页码 | 197-221 |
| 通讯作者 | Zhang J |
| 中文摘要 | Damage-induced anisotropy of quasi-brittle materials is investigated using component assembling model in this study. Damage-induced anisotropy is one significant character of quasi-brittle materials coupled with nonlinearity and strain softening. Formulation of such complicated phenomena is a difficult problem till now. The present model is based on the component assembling concept, where constitutive equations of materials are formed by means of assembling two kinds of components' response functions. These two kinds of components, orientational and volumetric ones, are abstracted based on pair-functional potentials and the Cauchy - Born rule. Moreover, macroscopic damage of quasi-brittle materials can be reflected by stiffness changing of orientational components, which represent grouped atomic bonds along discrete directions. Simultaneously, anisotropic characters are captured by the naturally directional property of the orientational component. Initial damage surface in the axial-shear stress space is calculated and analyzed. Furthermore, the anisotropic quasi-brittle damage behaviors of concrete under uniaxial, proportional, and nonproportional combined loading are analyzed to elucidate the utility and limitations of the present damage model. The numerical results show good agreement with the experimental data and predicted results of the classical anisotropic damage models. |
| 收录类别 | CPCI-S ; EI |
| 会议录 | International Journal Of Damage Mechanics
 |
| 会议录出版者 | London |
| 会议录出版地 | Sage Publications Ltd |
| 语种 | 英语 |
| ISSN号 | 1056-7895 |
| WOS记录号 | WOS:000255984800003 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/25438]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 通讯作者 | Zhang J |
| 推荐引用方式 GB/T 7714 | Zhang J,Liang NG,Deng SC,et al. Study of the damage-induced anisotropy of quasi-brittle materials using the component assembling model[C]. 见:7th World Congress on Computational Mechanics. Los Angeles, CA. JUL 16-22, 2006. |
入库方式： OAI收割
来源：力学研究所
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