Estimation of dynamic thermo viscoelastic moduli of short fiber-reinforced polymers based on a micromechanical model considering interphases/interfaces conditions

被引：81
作者：
Yang, Yang [1 ,2 ]
He, Qi [1 ,2 ]
Rao, Yan-Ni [1 ,2 ]
Dai, Hong-Liang [1 ,2 ]
机构：
[1] Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China
[2] Hunan Univ, Key Lab Adv Design & Simulat Technol Special Equi, Minist Educ, Changsha, Hunan, Peoples R China
来源：
POLYMER COMPOSITES | 2020年 / 41卷 / 02期
关键词：
composites; fibers; interfaces; microstructure; thermodynamics; MEAN-FIELD HOMOGENIZATION; MECHANICAL-PROPERTIES; ELASTIC PROPERTIES; PARTICULATE COMPOSITES; LINEAR VISCOELASTICITY; TEMPERATURE-DEPENDENCE; INCLUSION MODEL; INTERPHASE; INTERFACE; BEHAVIOR;
D O I：
10.1002/pc.25409
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
A novel three-dimensional micromechanical model describing frequency- and temperature-dependent viscoelastic behavior of short fiber-reinforced polymers (SFRPs) with graded interphase and slightly weakened interfaces are established. Elastic-viscoelastic correspondence approach, time-temperature superposition principle and Rao and Dai's (Compos. Struct. 2017; 168: 440) modification on the calculation of interface damage tensors are applied for dynamic thermo viscoelasticity prediction of the composite with the consideration of interphase/interface conditions. Certain parameters like filler content, interphase property, the aspect ratio of inclusions, frequency, and temperature were thoroughly analyzed to see their effect on the dynamic behavior of unidirectional SFRPs. Some valuable conclusions are made, which constitutes a valuable contribution to the theoretical prediction of SFRPs' mechanical properties.
引用
收藏
页码：788 / 803
页数：16
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