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 Effect of Washers on Mechanical Behavior of Single-lapped Connections in GFRP Plates using Tapping Screws
Tác giả hoặc Nhóm tác giả: Nguyen Ngoc Duong, Phan Viet Nhut, SATAKE Chito, MATSUMOTO Yukihiro
Nơi đăng: Proceeding of the 12th Symposium Research and Application of Hybrid and Composite Structures; Số: November, 2017;Từ->đến trang: (7)1-(7)8;Năm: 2017
Lĩnh vực: Kỹ thuật; Loại: Báo cáo; Thể loại: Quốc tế
TÓM TẮT
In recent years, mechanical characteristics of FRP connections using bolts/rivet have been researched in detail, and they are used in many FRP structures. However, the connection lack bearing strength compared with material strength and they need the prepared holes. In this paper, we surveyed the tapping screw connection strength and effects of washers on connection strength of single-lapped FRP plates using tapping screw under tensile-shear loading by experimental data and finite element method (FEM). The connection strength in GFRP plates depends on the washer’s diameters. When increasing washer’s diameter, the bearing strength of connections increased. Hence, increasing washer’s diameter at reasonable levels is an effective method to increase the load carrying capability for tapping screws connection in GFRP plates. Moreover, FEM was proposed to investigate the bearing strength of connections and there were good agreements between FEM and experimental results.
ABSTRACT
In recent years, mechanical characteristics of FRP connections using bolts/rivet have been researched in detail, and they are used in many FRP structures. However, the connection lack bearing strength compared with material strength and they need the prepared holes. In this paper, we surveyed the tapping screw connection strength and effects of washers on connection strength of single-lapped FRP plates using tapping screw under tensile-shear loading by experimental data and finite element method (FEM). The connection strength in GFRP plates depends on the washer’s diameters. When increasing washer’s diameter, the bearing strength of connections increased. Hence, increasing washer’s diameter at reasonable levels is an effective method to increase the load carrying capability for tapping screws connection in GFRP plates. Moreover, FEM was proposed to investigate the bearing strength of connections and there were good agreements between FEM and experimental results.
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