| 基于虚位移原理的宏细观统一本构模型 |
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| 引用本文： | 高希光,宋迎东,孙志刚.基于虚位移原理的宏细观统一本构模型[J].航空动力学报,2011,26(3):593-602. |
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| 作者姓名： | 高希光 宋迎东 孙志刚 |
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| 作者单位： | 南京航空航天大学,能源与动力学院,南京,210016 |
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| 基金项目： | 南京航空航天大学青年科技创新基金，江苏省博士后基金，国家重点基础研究发展计划 |
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| 摘 要： | 结合虚位移原理和宏细观统一本构模型的基本理论提出了一种宏细观统一本构模型.该模型将宏观位移表示为宏观应变与细观位移的线性组合,然后应用虚位移原理建立基本方程,采用有限元法进行求解,得到宏观应变增量和应力增量的关系式.通过算例分析对比了模型与FVDAM(finite volume directe average meth...
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| 关 键 词： | 复合材料 宏细观统一本构模型 虚位移原理 细观应力场 偏轴弹性模量 |
| 收稿时间： | 2010/2/27 0:00:00 |
| 修稿时间： | 2010/11/4 0:00:00 |
Macro and micro scale coupled constitutive model based on virtual displacement principle |
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| GAO Xi-guang,SONG Ying-dong and SUN Zhi-gang.Macro and micro scale coupled constitutive model based on virtual displacement principle[J].Journal of Aerospace Power,2011,26(3):593-602. |
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| Authors: | GAO Xi-guang SONG Ying-dong and SUN Zhi-gang |
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| Institution: | GAO Xi-guang,SONG Ying-dong,SUN Zhi-gang(College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
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| Abstract: | A novel constitutive model was developed for composite by combining the theory of macro and micro scale coupled constitutive model and the virtual displacement principle.The displacement within the subcell was expanded in terms of the global strains and the fluctuating displacements.Then the virtual displacement principle was used to construct the basic equations of the model.The periodic boundary conditions were employed to solve the basic equations.Finally the relation between global stress increment and ... |
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| Keywords: | composite macro and micro scale coupled constitutive model virtual displacement principle local stress deflexion effective elastic modulo |
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