Compressive Properties and Failure of Aluminum/Epoxy Resin Interpenetrating Phase Composites Reinforced by Glass Fiber

IF 2.3 4区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES Applied Composite Materials Pub Date : 2024-10-12 DOI:10.1007/s10443-024-10276-3

Mingming Su, Zhiming Zhou, Han Wang

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Abstract

Aluminum/epoxy resin interpenetrating phase composites (IPCs) were directly strengthened by adding glass fiber of varying content (80 wt%, 100 wt%, 120 wt% and 140 wt%) inside the epoxy resin. The macro and micro structures of IPCs were intact, and the interface between aluminum and epoxy resin was well combined. As the content of glass fiber increased, the compressive strength of epoxy resin increased, but the failure was advanced, while IPCs displayed the opposite trend. IPCs exhibited three compression deformation modes, namely plastic deformation of aluminum, resin fracture and interface debonding. The digital image correlation and infrared thermal imager were used to characterize the apparent principal strain distribution and temperature distribution of IPCs to verify the deformation modes. The surface temperature damage evolution of IPCs included the rapid temperature rise stage, steady temperature stage and slight temperature drop stage, respectively, mainly corresponding to the linear elastic stage, plateau stage and densification stage in the stress-strain curves.

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玻璃纤维增强铝/环氧树脂互穿相复合材料的压缩性能及破坏

通过在环氧树脂中加入不同含量的玻璃纤维（80 wt%、100 wt%、120 wt%和140 wt%）直接增强铝/环氧树脂互穿相复合材料。IPCs的宏观和微观结构完整，铝与环氧树脂界面结合良好。随着玻璃纤维含量的增加，环氧树脂的抗压强度增加，但破坏提前，而IPCs则相反。IPCs表现出三种压缩变形模式，即铝塑性变形、树脂断裂和界面脱粘。利用数字图像相关和红外热像仪对IPCs的视主应变分布和温度分布进行了表征，验证了其变形模式。IPCs表面温度损伤演化过程分别经历了快速升温阶段、稳定升温阶段和轻微降温阶段，主要对应于应力-应变曲线中的线弹性阶段、平台阶段和致密化阶段。

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来源期刊

Applied Composite Materials 工程技术-材料科学：复合

CiteScore

4.20

自引率

4.30%

发文量

审稿时长

1.6 months

期刊介绍： Applied Composite Materials is an international journal dedicated to the publication of original full-length papers, review articles and short communications of the highest quality that advance the development and application of engineering composite materials. Its articles identify problems that limit the performance and reliability of the composite material and composite part; and propose solutions that lead to innovation in design and the successful exploitation and commercialization of composite materials across the widest spectrum of engineering uses. The main focus is on the quantitative descriptions of material systems and processing routes. Coverage includes management of time-dependent changes in microscopic and macroscopic structure and its exploitation from the material''s conception through to its eventual obsolescence.