全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

纤维增强复合材料黏弹性行为的预测模型

, PP. 162-168

Keywords: 黏弹性,纤维增强复合材料,标准线性固体模型,蠕变柔量,松弛模量

Full-Text   Cite this paper   Add to My Lib

Abstract:

根据标准线性固体模型构造了一种预测纤维增强复合材料黏弹性行为的模型,推导出该模型的本构方程与松弛模量和蠕变柔量表达式,该模型经有限元仿真验证具有较高的精度。利用该模型研究了纤维几何特性对蠕变柔量和松弛模量的影响。结果表明,复合材料蠕变柔量与纤维比长度呈线性关系,而当纤维比半径增大到临界值后,其变化对材料的松弛模量和蠕变柔量影响减小,该临界值随纤维弹性模量的增大而减小;当纤维模量与基体模量相差较大时,复合材料的增强系数和减柔系数几乎不受时间变化的影响。

References

[1]  Mondali M, Abedian A, Ghavami A. A new analytical shear-lag based model for prediction of the steady state creep deformations of some short fiber composites [J]. Materials & Design, 2009, 30(4): 1075-1084.
[2]  Hsueh C H. Young's modulus of unidirectional discontinuous-fibre composites [J]. Composites Science and Technology, 2000, 60(14): 2671-2680.
[3]  Sharma M, Mohan Rao I, Bijwe J. Influence of fiber orientation on abrasive wear of unidirectionally reinforced carbon fiber: Polyetherimide composites [J]. Tribology International, 2010, 43(5/6): 959-964.
[4]  Ghavami A, Abedian A, Mondali M. Finite difference solution of steady state creep deformations in a short fiber composite in presence of fiber/matrix debonding [J]. Materials & Design, 2009, 31(5): 2616-2624.
[5]  Abadi M T. Micromechanical analysis of stress relaxation response of fiber-reinforced polymers [J]. Composites Science and Technology, 2009, 69(7/8): 1286-1292.
[6]  Hernandez-Jimenez A, Hernandez-Santiago J, Macias-Garcia A, et al. Relaxation modulus in PMMA and PTFE fitting by fractional Maxwell model [J]. Polymer Testing, 2002, 21(3): 325-331.
[7]  Halpin John C. Primer on composite materials [J]. Materials & Design, 1984, 6(3): 145-145.
[8]  Eshelby J D. The determination of the elastic field of an ellipsoidal inclusion and related problems //Proceedings of the Royal Society: Series A. London: Royal Society, 1957.
[9]  Eshelby J D. The elastic field outside an ellipsoidal inclusion //Proceedings of the Royal Society: Series A. London: Royal Society, 1959.
[10]  Mori T, Tanaka K. Average stress in matrix and average elastic energy of materials with misfitting inclusions [J]. Acta Metallurgica, 1973, 21(5): 571-574.
[11]  Hill R. A self-consistent mechanics of composite materials [J]. Journal of the Mechanics and Physics of Solids, 1965, 13(4): 213-222.
[12]  Budiansky B. On the elastic moduli of some heterogeneous materials [J]. Journal of the Mechanics and Physics of Solids, 1965, 13(4): 223-227.
[13]  Hancox N L. Primer on composite materials analysis [J]. Materials & Design, 1992, 13(6): 369.
[14]  李红周, 贾玉玺, 姜 伟, 等. 纤维增强复合材料的细观力学模型以及数值模拟进展 [J]. 材料工程, 2006, 65(8): 57-60. Li Hongzhou, Jia Yuxi, Jiang Wei, et al. Progress in numerical simulations and mesoscopic-mechanical models of fiber-reinforced composites [J]. Journal of Materials Engineering, 2006, 65(8): 57-60.
[15]  Hsueh C H. Modified analysis for stress transfer in fibre-reinforced composites with bonded fibre ends [J]. Journal of Materials Science, 1995, 30(1): 219-224.
[16]  Lai C, Ayyer R, Hiltner A, et al. Effect of confinement on the relaxation behavior of poly(ethylene oxide) [J]. Polymer, 2010, 51(8): 1820-1829.
[17]  王世博, 葛世荣, 朱真才, 等. 氧化锌晶须增强尼龙复合材料蠕滑特性 [J]. 机械工程学报, 2010, 46(5): 63-67. Wang Shibo, Ge Shirong, Zhu Zhencai, et al. Traction rolling characteristic of nylon composites reinforced with zinc oxide whisker [J]. Journal of Mechanical Engineering, 2010, 46(5): 63-67.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133