Volume 29 Issue 7
Jul.  2014
Turn off MathJax
Article Contents
Article Navigation >  Journal of Aerospace Power  > 2014  >  (7): 1574-1582
LU Si-da, GAO Xi-guang, SONG Ying-dong. Prediction method on equivalent thermal conductivity coefficient of plain braided C/SiC composites material based on finite element method[J]. Journal of Aerospace Power, 2014, (7): 1574-1582. doi: 10.13224/j.cnki.jasp.2014.07.009
Citation: LU Si-da, GAO Xi-guang, SONG Ying-dong. Prediction method on equivalent thermal conductivity coefficient of plain braided C/SiC composites material based on finite element method[J]. Journal of Aerospace Power, 2014, (7): 1574-1582. doi: 10.13224/j.cnki.jasp.2014.07.009
shu

Prediction method on equivalent thermal conductivity coefficient of plain braided C/SiC composites material based on finite element method

doi: 10.13224/j.cnki.jasp.2014.07.009

  • 1. Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;

  • 2. Department of Power and Propulsion, School of Engineering, Cranfield University, Bedfordshire MK4;

  • 3. State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

  • Received Date: 2013-06-21
  • Publish Date: 2014-07-28
    Abstract
  • A computing method on equivalent thermal conductivity of plain braided C/SiC composites material was proposed based on finite element method. Mesoscopic structure of materials was studied firstly, including microscopic model of carbon fiber bundles with matrix and single-cell model. Effects of porosity on the matrix equivalent thermal conductivity coefficient were calculated using random-pore single-cell model. The equivalent thermal conductivity coefficient of carbon fiber bundles with matrix and composites material was calculated under the condition of three sets of boundary conditions. Finally with the proposed method, the relationship between equivalent thermal conductivity coefficient and fiber volume fraction/porosity was studied in detail. The results indicate that the equivalent thermal conductivity coefficient of the composites material decreases linearly with the increase of fiber volume fraction. While fiber volume fraction increases from 54% to 78%, the equivalent thermal conductivity coefficient in y axis direction declines by 12.8% and that in x and z axis directions by 8.6%. The equivalent thermal conductivity coefficient of the composites material presents an accelerating downward trend during the porosity's rising process. While the porosity increases from 0% to 30%, the equivalent thermal conductivity coefficient declines by 22.91% in x and z axis directions and 34.66% in y axis direction.

     

    • FullText(HTML)
  • loading
    • References(22)
  • [1]
    甘永学,张志民.纤维增强陶瓷基复合材料的研究及其在航空航天领域的应用[J]. 宇航材料工艺,1994,24(5):1-5. GAN Yongxue,ZHANG Zhimin.Research of CMC and its applications in the aerospace field[J].Aerospace Materials and Technology,1994,24(5):1-5.(in Chinese)
    [2]
    张立同,成来飞,徐永东.新型碳化硅陶瓷基复合材料的研究进展[J].航空制造技术,2003(1):24-32. ZHANG Litong,CHENG Laifei,XU Yongdong.Progress in research work of new CMC-SiC[J].Aeronautical Manufacturing Technology,2003(1):24-32.(in Chinese)
    [3]
    聂荣华,矫桂琼,王波.二维编织C/SiC复合材料的热膨胀系数预测[J].复合材料学报,2008,25(2):109-114. NIE Ronghua,JIAO Guiqiong,WANG Bo.Prediction on coefficient of thermal expansion for 2-D braided C/SiC composites[J].Acta Materiae Compositae Sinica,2008,25(2):109-114.(in Chinese)
    [4]
    邵将,温卫东,崔海涛.纺织陶瓷基复合材料力学性能研究进展[J].硅酸盐学报,2007,35(1):114-122. HAO Jiang,WEN Weidong,CUI Haitao.Research progress on mechanical properties of ceramic matrix textile composite[J].Journal of the Chinese Ceramic Society,2007,35(1):114-122.(in Chinese)
    [5]
    聂荣华,矫桂琼,王波.二维编织C/SiC陶瓷基复合材料的热传导系数预测[J].复合材料学报,2009,26(3):169-174. NIE Ronghua,JIAO Guiqiong,WANG Bo.Prediction on coefficient of thermal conductivity for 2D braided C/SiC composites[J].Acta Materiae Compositae Sinica,2009,26(3):169-174.(in Chinese)
    [6]
    程伟,赵寿根,刘振国,等.三维四向编织复合材料等效热特性数值分析和试验研究[J].航空学报,2002,23(2):102-105. CHENG Wei,ZHAO Shougen,LIU Zhenguo,et al.Thermal property of 3-D braided fiber composites:experimental and numerical results[J].Acta Aeronautica et Astronautica Sinica,2002,23(2):102-105.(in Chinese)
    [7]
    程耿东,刘书田.单向纤维复合材料导热性预测[J].复合材料学报,1996,13(1):78-85. CHENG Gengdong,LIU Shutian.Prediction of thermal conductivity of unidirectional fiber reinforced composites[J].Acta Materiae Compositae Sinica,1996,13(1):78-85.(in Chinese)
    [8]
    彭浩,樊栓狮,黄犊子.瞬变平面热源法测定常压下四氢呋喃水合物的导热系数[J].化学通报,2005,68(12):45-49. PENG Hao,FAN Shuanshi,HUANG Duzi.The determination of thermal conductivity of tetrahydrofuran hydrate at atmospheric pressure by transient plane source method[J].Chemistry,2005,68(12):45-49.(in Chinese)
    [9]
    Loeb A L.Thermal conductivity:Ⅷ a theory of thermal conductivity of porous materials[J].Journal of the American Ceramic Society,1954,37(2):96-99.
    [10]
    Farooqi J K,Sheikh M A.Finite element modelling of thermal transport in ceramic matrix composites[J].Computational Materials Science,2006,37(3):361-373.
    [11]
    XU Yibin,Yagi K.Automatic FEM model generation for evaluating thermal conductivity of composite with random materials arrangement[J].Computational Material Science,2004,30(3/4):242-250.
    [12]
    Tzou D Y.A universal model for the overall thermal condauctivity of porous media[J].Composite Materials,1991,25(8):1064-1084.
    [13]
    李龙,高希光,史剑,等.考虑孔隙的针刺C/SiC复合材料弹性参数计算[J].航空动力学报,2013,28 (6):1257-1263. LI Long,GAO Xiguang,SHI Jian,et al.Calculation of needled C/SiC composite elastic parameters in consideration of the porosity[J].Journal of Aerospace Power,2013,28(6):1257-1263.(in Chinese)
    [14]
    高希光,宋迎东,孙志刚.纤维尺寸随机引起的复合材料性能分散性研究[J].材料科学与工程学报,2005,23(3):335-340. GAO Xiguang,SONG Yingdong,SUN Zhigang.Research on variation of effective performances of composites induced by the stochastic fiber size[J].Journal of Materials Science and Engineering,2005,23(3):335-340.(in Chinese)
    [15]
    高希光,宋迎东,孙志刚.陶瓷基复合材料高精度宏细观统一本构模型研究[J].航空动力学报,2008,23(9):1617-1622. GAO Xiguang,SONG Yingdong,SUN Zhigang.Multi-scale constitute model for ceramic matrix composite by high fidelity generalized method of cell[J].Journal of Aerospace Power,2008,23(9):1617-1622.(in Chinese)
    [16]
    宋迎东,雷友锋,孙志刚,等.一种新的纤维增强复合材料细观力学模型[J].南京航空航天大学学报,2003,35(4):435-440. SONG Yingdong,LEI Youfeng,SUN Zhigang,et al.A new micro-mechanics model for fibrous composite[J].Journal of Nanjing University of Aeronautics and Astronautics,2003,35(4):435-440.(in Chinese)
    [17]
    孙志刚,宋迎东,高希光,等.细观结构对复合材料热膨胀 系数的影响研究[J].应用力学学报,2004,21(2):146-150. SUN Zhigang,SONG Yingdong,GAO Xiguang,et al.Influence of micro-structural geometry on thermal expansion coefficient of composites[J].Chinese Journal of Applied Mechanics,2004,21(2):146-150.(in Chinese)
    [18]
    孙志刚,宋迎东,高德平.纤维增强复合材料细观温度场计算[J].航空动力学报,2005,20(4):595-599. SUN Zhigang,SONG Yingdong,GAO Deping.Temperature fields calculation of fiber reinforced composite at micro level[J].Journal of Aerospace Power,2005,20(4):595-599.(in Chinese)
    [19]
    GAO Xiguang,SONG Yingdong,SUN Zhigang,et al.Numerical simulation of dynamic response of fiber reinforced ceramic matrix composite beam with matrix cracks using multiscale modeling[J].Chinese Journal of Aeronautics,2010,23(5):537-548.
    [20]
    孙志刚,宋迎东,高希光,等.改进算法的三维通用单胞模型及其应用[J].机械科学与技术,2005,24(9):1029-1032. SUN Zhigang,SONG Yingdong,GAO Xiguang,et al.An efficient implementation of the three dimensional GMC model and its application[J].Mechanical Science and Technology,2005,24(9):1029-1032.(in Chinese)
    [21]
    杨世铭,陶文铨.传热学[M].北京:高等教育出版社,2006.
    [22]
    龚曙光,谢桂兰,黄云清.ANSYS参数化编程与命令手册[M].北京:机械工业出版社,2009.
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Get Citation
    PDF(1099.0KB)
    XML

    Article Metrics

    Article views (2251) PDF downloads(857) Cited by()
    Proportional views
    Related

    Copyright © 《Journal of Aerospace Power》 All Rights Reserved.

    Supported by: Beijing Renhe Information Technology Co., Ltd.  

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return