A model for the elastic moduli of three-dimensional fiber networks and nanocomposites
A model for the elastic moduli of three-dimensional fiber networks and nanocomposites
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DOI：
10.1063/1.2336088
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发表时间：
2006-09-01
影响因子：
3.2
通讯作者：
Chatterjee, Avik P.
中科院分区：
文献类型：
--
作者：
Chatterjee, Avik P.
建立了三维纤维网络的拉伸和剪切弹性模数模型。半经验的Halpin-Tsai[J.C.Halpin和J.L.Kardos，J.Appl.太棒了。43,2235(1972)]纤维增强材料的方程与渗流理论的结果和目前弹性纤维网络的处理相结合。提供了包含细长填料颗粒的纳米复合材料在跨越填料渗流阈值的体积分数范围内的弹性系数的统一描述。给出了拉伸和剪切变形下弹性极限应变的估计值，并给出了复合材料弹性模量和屈服应变与颗粒长宽比和体积分数的关系的模型计算。(C)2006年美国物理研究所。
A model is developed for the tensile and shear elastic moduli of three-dimensional fiber networks. The semiempirical Halpin-Tsai [J. C. Halpin and J. L. Kardos, J. Appl. Phys. 43, 2235 (1972)] equations for fiber-reinforced materials are combined with results from percolation theory and the present treatment of elastic fiber networks. A unified description of the moduli of nanocomposites containing elongated filler particles over a range of volume fractions spanning the filler percolation threshold is provided. Estimates are developed for the strains at the elastic limits under tensile and shear deformation, and model calculations are presented for the dependences of composite moduli and yield strains on particle aspect ratios and volume fractions. (c) 2006 American Institute of Physics.