China Plastics ›› 2025, Vol. 39 ›› Issue (8): 12-18.DOI: 10.19491/j.issn.1001-9278.2025.08.003

• Materials and Properties • Previous Articles     Next Articles

Study on low⁃velocity impact properties of carbon/glass hybrid fiber⁃reinforced epoxy matrix composites

SHENG Honghang1(), WU Wei1(), FAN Wenzhou2, LI Xuehua1, CHENG Hao1   

  1. 1.College of Textile and Light Industry,Inner Mongolia University of Technology,Hohhot 010080,China
    2.Faculty of Mechanical and Electrification Engineering,Tarim University,Aral 843300,China
  • Received:2024-09-16 Online:2025-08-26 Published:2025-07-30

Abstract:

The impact resistance of six types of structural laminates was investigated using a drop hammer impact tester at varying energy levels. Post⁃impact damage characterization was performed through visual inspection and scanning electron microscopy (SEM) observation at 20 J impact energy. Results indicated that carbon/glass hybrid fiber⁃reinforced epoxy matrix (CGGG) laminates exhibited superior performance, achieving the highest ultimate load and energy absorption capacity. Key findings demonstrated that: (1) under identical fiber mixing ratios, glass fiber impact surfaces showed less fiber damage while carbon fiber surfaces facilitated greater energy absorption; (2) the non⁃impacted backside consistently displayed larger damage areas than the impact surface; and (3) SEM analysis indicated stronger carbon fiber/resin interfacial bonding compared to glass fiber counterparts. Despite this interfacial advantage, the inherent toughness of glass fibers ultimately governed the impact resistance of the laminates, rendering glass fiber composites more impact⁃resistant than carbon fiber variants. These findings provide valuable insights for optimizing fiber⁃reinforced composite structures in impact⁃prone applications.

Key words: hybrid composite, impact resistance, carbon fiber, glass fiber

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