Inverse determine the interfacial strength and surface geometry effects concerning carbon fiber reinforced epoxy composites by experiment aided FFT‐based spectral analysis

Bing Wang; Zhangwen Wang; Guodong FangMenglei LiJiaqi ZhuYuan ZhaoSonghe Meng

首页> 外文期刊>Polymer Composites >Inverse determine the interfacial strength and surface geometry effects concerning carbon fiber reinforced epoxy composites by experiment aided FFT‐based spectral analysis

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Inverse determine the interfacial strength and surface geometry effects concerning carbon fiber reinforced epoxy composites by experiment aided FFT‐based spectral analysis

机译：Inverse determine the interfacial strength and surface geometry effects concerning carbon fiber reinforced epoxy composites by experiment aided FFT‐based spectral analysis

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Abstract The interfacial strength of carbon fiber reinforced epoxy composites is determined inversely by the combination of the transverse fiber bundle tensile experiment and fast Fourier transforms based spectral method. A representative volume element with transverse random fiber distribution is established to predict the strength of the composites, where the nanoscale interphase region between fiber and matrix is discretized by multi‐layer pixels. The interfacial stiffness is described by an exponential function, while the interfacial strength is a variable input. By using the spectral method, the interfacial strength of composites with different fiber types is analyzed rapidly. The effects of fiber modulus and interfacial geometric features (including interface topology and interphase thickness) on the mechanical behaviors and interfacial strength inversion are investigated to reveal the interface enhancement mechanisms. This study can be greatly helpful for interface design and performance evaluation of new‐type carbon fiber reinforced composites in engineering application.

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来源
《Polymer Composites》 |2022年第12期|9205-9217|共13页
作者
Bing Wang; Zhangwen Wang; Guodong FangMenglei LiJiaqi ZhuYuan ZhaoSonghe Meng;
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作者单位

Zhejiang Normal University;

Center for Composite Materials and Structures, Harbin Institute of Technology;

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原文格式 PDF
正文语种英语
中图分类增强塑料、填充塑料;
关键词
carbon fiber reinforced epoxy composites; damage mechanisms; FFT‐based method; interface; strength;

Inverse determine the interfacial strength and surface geometry effects concerning carbon fiber reinforced epoxy composites by experiment aided FFT‐based spectral analysis

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