Experimental study of bond performance on carbon fiber fabric-steel joint with mechanical anchors at elevated temperatures

IF 6.3 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composite Structures Pub Date : 2025-02-21 DOI:10.1016/j.compstruct.2025.118998

Zhongwei Zhao, Zeyuan Jin

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引用次数: 0

Abstract

This paper investigates the effects of anchor reinforcement on the bond-slip behavior of carbon fiber fabric-steel systems under high-temperature conditions. The experiments were conducted with three temperature ranges from 20 °C to 70 °C, including a control group with no anchor reinforcement and two groups with different anchor positions. The results indicated that as the temperature increased from 20 °C to 50 °C, the load capacity of all specimen groups improved to varying extents. Beyond 50 °C, a significant degradation in load capacity was observed for all groups. Furthermore, temperature and anchor position significantly affected the failure modes, including the residual area of carbon fiber fabric on the steel plate surface (RA) and the modes of carbon fiber fabric fracture, as well as the bond-slip behavior. As the temperature rose, but the glass transition temperature (T_g), RA increased, impacting the strain distribution and the maximum shear stress at the bonded interface. The experiments also showed that when the environmental temperature exceeds T_g, anchor reinforcement can enhance the bond reliability of the carbon fiber fabric-steel system. The findings of this study provide insights into the degradation patterns of carbon fiber fabric-steel under high-temperature environments and propose a viable reinforcement method.

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来源期刊

Composite Structures 工程技术-材料科学：复合

CiteScore

12.00

自引率

12.70%

发文量

1246

审稿时长

78 days

期刊介绍： The past few decades have seen outstanding advances in the use of composite materials in structural applications. There can be little doubt that, within engineering circles, composites have revolutionised traditional design concepts and made possible an unparalleled range of new and exciting possibilities as viable materials for construction. Composite Structures, an International Journal, disseminates knowledge between users, manufacturers, designers and researchers involved in structures or structural components manufactured using composite materials. The journal publishes papers which contribute to knowledge in the use of composite materials in engineering structures. Papers deal with design, research and development studies, experimental investigations, theoretical analysis and fabrication techniques relevant to the application of composites in load-bearing components for assemblies, ranging from individual components such as plates and shells to complete composite structures.