Dynamic interfacial bond behaviour between basalt fiber reinforced polymer sheets and concrete

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:202

Article

Yuan, Cheng¹  Chen, Wensu¹  Pham, Thong M.¹  Hao, Hong¹  Cui, Jian²  Shi, Yanchao² 

[1] Curtin Univ, Ctr Infrastruct Monitoring & Protect, Sch Civil & Mech Engn, Perth, WA, Australia

[2] Tianjin Univ, Tianjin Univ & Curtin Univ Joint Res Ctr Struct M, Sch Civil Engn, Perth, WA, Peoples R China

关键词: Interfacial bond behaviour;    Basalt fibre-reinforced polymer (BFRP);    Dynamic loads;    Strain rate;    DIC;   

DOI  :  10.1016/j.ijsolstr.2020.07.007

来源: Elsevier

【 摘 要 】

An experimental investigation on the dynamic interfacial bond behaviour between basalt fibre (BFRP) sheets and concrete under different loading speeds (i.e. 8.33E-6 m/s, 0.1 m/s, 1 m/s, 3 m/s, 5 m/s, and 8 m/s) by using single-lap shear tests was carried out in this study. Experimental results including bond strength, strain time histories, strain distributions in the bonding areas, interfacial fracture energy, and bond-slip curves are presented in this study. The test results show that the interface is strain rate dependent. The interfacial fracture energy, bond strength, and interfacial bond shear stress-slip are sensitive to strain rate. Empirical bond-slip model including strain rate effect are established for the predictions of bond properties between BFRP sheets and concrete under dynamic loading. (C) 2020 Elsevier Ltd. All rights reserved.

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