Multi-scale analysis of fiber-matrix interfacial enhancement in hybrid structural composites with aligned zinc oxide nanowires
Multi-scale analysis of fiber-matrix interfacial enhancement in hybrid structural composites with aligned zinc oxide nanowires
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DOI：
10.1088/2053-1591/ab2579
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发表时间：
2019-08-01
影响因子：
2.3
通讯作者：
Liu, Yingtao
中科院分区：
文献类型：
--
作者：
Marashizadeh, Parisa;Abshirini, Mohammad;Liu, Yingtao
本文采用三维多尺度分析方法研究了拉伸载荷下增强单根碳纤维增强聚合物基复合材料的界面性能和破坏机理。模拟碳纤维表面径向排列的氧化锌（ZnO）纳米线，以评估增强的界面性能。在微观尺度上，有效的界面性能与各种ZnO体积分数进行了评估，使用一个适当的代表性体积元素。在细观尺度上，采用内聚区模型研究了纤维与基体的界面。在宏观尺度上，增强的单纤维复合材料的第一个故障进行评估，利用最大拉伸理论和适当的用户子程序在有限元模型。多尺度分析表明，在碳纤维表面生长ZnO纳米线可以改善碳纤维与基体之间的界面性能，从而增强结构复合材料中基体与纤维之间的应力传递能力。
In this paper, a three-dimensional multi-scale analysis is presented to investigate the interfacial properties and failure mechanism of an enhanced single carbon fiber reinforced polymer matrix composite under tensile load. Radially aligned zinc oxide (ZnO) nanowires on the surface of carbon fiber are simulated to evaluate the enhanced interfacial properties. At the micro-scale, the effective interfacial properties with various ZnO volume fractions are evaluated using an appropriate representative volume element. At the meso-scale, a cohesive zone model is used to study the interface between the fiber and the matrix. At the macro-scale, the first failure of the enhanced single fiber composite is evaluated utilizing the maximum tensile theory and an appropriate user subroutine in a finite element model. The developed multi-scale analysis demonstrates that the interfacial properties between carbon fibers and matrix can be improved by growing ZnO nanowires on the fibers' surface, resulting in enhanced stress transfer capability between matrix and fiber in structural composites.