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  • Summary & Details

Evaluation Method of Crack Propagation Life of CFRP Bonded Structures Using Urethane Adhesives

ウレタン系接着剤を用いたCFRP接着接合構造のき裂進展寿命評価手法

Detailed Information

Author(J)1) 湯浅 卓也, 2) 河井 範之, 3) 西谷 公光, 4) 佐藤 弘幸, 5) 横手 芳樹, 6) 佐藤 広介, 7) 中丸 敏明, 8) 小川 武史
Author(E)1) Takuya Yuasa, 2) Noriyuki Kawai, 3) Takamitsu Nishiya, 4) Hiroyuki Sato, 5) Yoshiki Yokote, 6) Kousuke Satou, 7) Toshiaki Nakamaru, 8) Takeshi Ogawa
Affiliation(J)1) 日産自動車, 2) マツダ, 3) いすゞ自動車, 4) プレス工業, 5) 日野自動車, 6) 日産自動車, 7) 日産自動車, 8) 青山学院大学
Affiliation(E)1) Nissan Motor, 2) Mazda, 3) Isuzu Motors, 4) Press Kogyo, 5) Hino Motors, 6) Nissan Motor, 7) Nissan Motor, 8) Aoyama Gakuin University
Abstract(J)全寿命の殆どをウレタン系接着剤のき裂進展が占めるCFRP接着接合構造のき裂進展挙動を,実構造を模擬した片ハットねじり試験体の実験計測と有限要素解析より明らかにした.さらに,破壊力学的考察を加え,ラップシア試験片および,I字曲げ試験体との比較により,設計指標となる評価クライテリアを検証した.

Translation

Abstract(E)Crack growth behavior of CFRP adhesive bonded structures, in which most of the whole life is occupied by crack growth of urethane adhesive, was clarified by experimental measurement and finite element analysis of hat shaped torsional specimens simulating actual car body structure. In addition, the fracture mechanics analysis was conducted, and verified the evaluation criteria by comparing with lap shear specimens and I-shaped bending specimens.

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