Effect of residual interface stress on thermo-elastic properties of   unidirectional fiber-reinforced nanocomposites

doi:10.1016/j.ijmecsci.2016.04.006

CORC > 北京大学 > 工学院

	Effect of residual interface stress on thermo-elastic properties of unidirectional fiber-reinforced nanocomposites
	Chen, Yongqiang ; Zhang, Zhenguo ; Huang, Ruchao ; Huang, Zhuping
刊名	INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
	2016
关键词	Interface energy theory Residual interface stress Fiber-reinforced nanocomposites Effective thermo-elastic properties Modified generalized self-consistent method DEPENDENT ELASTIC PROPERTIES EFFECTIVE SPECIFIC-HEATS EFFECTIVE MODULI COMPOSITE-MATERIALS HETEROGENEOUS MATERIALS NANO-COMPOSITES SURFACE-TENSION THIN-FILMS INCLUSION CONNECTIONS
DOI	10.1016/j.ijmecsci.2016.04.006
英文摘要	Surface/interface effect plays a significant role in the study of the mechanical properties of nano composites. Most previous papers in the literature only considered the surface/interface elasticity, whereas some papers only considered the residual surface/interface stress (surface/interface tension). In this paper, an energy-based surface/interface theory is applied to systematically study the effective thermo-elastic properties of unidirectional fiber-reinforced nanocomposites, in which both the surface/interface elasticity and the residual surface/interface stress are included. The emphasis is particularly placed on the influence of the residual interface stress on the effective thermo-elastic properties of such nanocomposites, since this influence was ignored by many previous authors. Analytical expressions of five effective transversely isotropic elastic constants are derived, in which a modified generalized self consistent method is suggested to obtain an explicit expression of the size-dependent effective transverse shear modulus. Furthermore, with an introduced concept of 'equivalent fiber' (i.e., a fiber together with its interface), the effective thermal expansion coefficients and the effective specific heat at constant strain of the fiber-reinforced nanocomposite are obtained. Finally, numerical examples are illustrated, and the effect of residual interface stress on the effective thermo-elastic properties of the fibrous nanocomposite is discussed. It is shown that the residual interface stress has a significant effect on the overall thermo-elastic properties of the nanocomposites. (C) 2016 Elsevier Ltd. All rights reserved.; National Natural Science Foundation of China [11272007, 11332001]; SCI(E); EI; ARTICLE; chenyq@pku.edu.cn; 1201111505@pku.edu.cn; hrchero@l63.com; huangzp@pku.edu.cn; 133-147; 113
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437101]
专题	工学院
推荐引用方式 GB/T 7714	Chen, Yongqiang,Zhang, Zhenguo,Huang, Ruchao,et al. Effect of residual interface stress on thermo-elastic properties of unidirectional fiber-reinforced nanocomposites[J]. INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,2016.
APA	Chen, Yongqiang,Zhang, Zhenguo,Huang, Ruchao,&Huang, Zhuping.(2016).Effect of residual interface stress on thermo-elastic properties of unidirectional fiber-reinforced nanocomposites.INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES.
MLA	Chen, Yongqiang,et al."Effect of residual interface stress on thermo-elastic properties of unidirectional fiber-reinforced nanocomposites".INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES (2016).