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Số người truy cập: 106,994,914

 Relationships between Failure Behavior and Bolted Connection Strength ò Pultruded GFRP Reinforced by Multiaxial Glass Fiber Sheets
Tác giả hoặc Nhóm tác giả: Phan Viet Nhut, Hideki Takashima, Yukihiro Matsumoto, Yasuo Kitane,
and Kunitaro Hashimoto
Nơi đăng: Proceeding of the 13th Symposium Research and Application of Hybrid and Composite Structures; Số: 2019;Từ->đến trang: 286-295;Năm: 2019
Lĩnh vực: Kỹ thuật; Loại: Bài báo khoa học; Thể loại: Quốc tế
TÓM TẮT
Pultruded Fiber Reinforced Polymers (PFRP) have been increasingly used in the field of engineering constructions because of their advanced characteristics like lightweight, high strength, and easily molding process. In civil engineering structures, mechanical connections such as bolted connection are widely used
because it is an easy way to connect the members. However, this kind of connection for PFRP has low
shear strength, reducing the mechanical performance of the connections. In order to overcome this problem,
thin multiaxial glass fiber sheets (GF) molded by VaRTM methods can be effectively used to strengthen
the PFRP connections. In this paper, two types of GF sheets (0/90 degrees and 45 degrees) were used to
strengthen the connections. The strengthening effects of GF sheets for the connections and failure modes
of connections will be investigated by tensile shear tests. Then, the relationship between failure modes of
the connections and bolted connection strength, including bearing strength and shear-out strength will be
investigated. Moreover, this study was conducted for the purpose of examining the formulas of the evaluation of PFRP-bolted connection strength reinforced by multiaxial GF sheets.
ABSTRACT
Pultruded Fiber Reinforced Polymers (PFRP) have been increasingly used in the field of engineering constructions because of their advanced characteristics like lightweight, high strength, and easily molding process. In civil engineering structures, mechanical connections such as bolted connection are widely used
because it is an easy way to connect the members. However, this kind of connection for PFRP has low
shear strength, reducing the mechanical performance of the connections. In order to overcome this problem,
thin multiaxial glass fiber sheets (GF) molded by VaRTM methods can be effectively used to strengthen
the PFRP connections. In this paper, two types of GF sheets (0/90 degrees and 45 degrees) were used to
strengthen the connections. The strengthening effects of GF sheets for the connections and failure modes
of connections will be investigated by tensile shear tests. Then, the relationship between failure modes of
the connections and bolted connection strength, including bearing strength and shear-out strength will be
investigated. Moreover, this study was conducted for the purpose of examining the formulas of the evaluation of PFRP-bolted connection strength reinforced by multiaxial GF sheets.
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