| 弱界面黏结通用单胞模型理论及应用 |
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| 引用本文： | 高希光,孙志刚,廉英琦,宋迎东,朱如鹏.弱界面黏结通用单胞模型理论及应用[J].航空动力学报,2009,24(8):1684-1690. |
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| 作者姓名： | 高希光 孙志刚 廉英琦 宋迎东 朱如鹏 |
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| 作者单位： | 南京航空航天大学能源与动力学院;南京航空航天大学机电学院; |
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| 基金项目： | 博士点基金(20070287039);;973项目 |
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| 摘 要： | 将通用单胞模型与弱界面分离模型结合.首先推导了增量型通用单胞模型计算公式,然后采用界面位移公式对平均位移连续条件进行改造,建立子胞平均应变增量和宏观应变增量的函数关系.应用子胞增量本构方程得到子胞平均应力增量表达式,采用均匀化方法获得宏观应力增量表达式.最后采用渐进适应界面模型模拟了长纤维复合材料的横向拉伸过程.算例分析表明,将界面分离模型和通用单胞模型结合能较好地模拟复合材料在拉伸载荷下的宏观响应.
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| 关 键 词： | 复合材料 界面脱黏 弱界面 通用单胞模型 计算机模拟 |
| 收稿时间： | 8/8/2008 12:10:47 AM |
| 修稿时间： | 2009/2/18 0:00:00 |
Generalized method of cell with weak interfacial bonding |
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| GAO Xi-guang,SUN Zhi-gang,LIAN Ying-qi,SONG Ying-dong and ZHU Ru-peng.Generalized method of cell with weak interfacial bonding[J].Journal of Aerospace Power,2009,24(8):1684-1690. |
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| Authors: | GAO Xi-guang SUN Zhi-gang LIAN Ying-qi SONG Ying-dong and ZHU Ru-peng |
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| Institution: | 1.College of Energy and Power Engineering;Nanjing University of Aeronautics and Astronautics;Nanjing 210016;China;2.College of Mechanical Engineering;China |
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| Abstract: | A generalized method of cell(GMC) with weak interface was developed to model the interface debonding within continuum fiber reinforced composite.To accomplish this work,the average displacement continuum condition between sub-cells in original GMC was modified by employing weak interface theory.Then the average strain of subcell was expressed in terms of global strain.By using the local constitutive equation,the relationship between average stress of subcell and the global strain was established.At last,the... |
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| Keywords: | composite interface debonding weak interface generalized method of cell computer modeling |
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