Modeling of Fiber Kinking Damage for Bearing Failure in Bolted Joints of CFRP Laminates

• NADABE Takeaki

  Department of Advanced Energy, The University of Tokyo

• NISHIKAWA Masaaki

  Department of Nanomechanics, Tohoku University

• MINAKUCHI Shu

  Department of Mechanical Engineering and Science, Kyoto University

• NAKAMURA Tatsuya

  Department of Advanced Energy, The University of Tokyo

• TAKEDA Nobuo

  Department of Advanced Energy, The University of Tokyo

Bibliographic Information

Other Title

• CFRPボルト接合部の面圧破壊に影響する繊維キンク損傷のモデリング
• CFRP ボルト セツゴウブ ノ メンアツ ハカイ ニ エイキョウ スル センイ キンク ソンショウ ノ モデリング

Abstract

This paper experimentally investigates damage mechanisms which is closely related with the bearing failure in bolted joints of CFRP laminates and proposes a finite element model to reproduce those damage mechanisms. First, the damage was observed in the bearing failure of bolted joints, and the main factor of the large stiffness degradation in bearing failure is the fiber kinking damage. In addition, the fiber kinking is suppressed by the bolt clamping, which increases the bearing strength of bolted joints. Then, three-dimensional finite element model was developed for addressing the bearing failure in bolted joints based on the experimental observation. In this model, the initiation and the propagation of the fiber kinking damage which plays an important role in the bearing failure of bolted joints were reproduced and the stress failure criteria were investigated. The variation of the load at the kinking onset due to the bolt clamping was simulated and consequently the load history during the evolution of the fiber kinking damage was simulated.

Journal

• Journal of the Japan Society for Composite Materials

  Journal of the Japan Society for Composite Materials 37 (5), 172-181, 2011

  The Japan Society for Composite Materials

Keywords

• Fiber reinforced composites
• Failure mechanism
• Bearing failure
• Progressive failure analysis
• Mechanically fastened joints

Details

• CRID: 1390001204623400448
• NII Article ID: 10029880905
• NII Book ID: AN00196748
• DOI: 10.6089/jscm.37.172
• COI: 1:CAS:528:DC%2BC38XnsFSh
• ISSN: 18848559
• ISSN: 03852563
• HANDLE: 2433/171997
• NDL BIB ID: 11253523
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I11253523
• Text Lang: en
• Data Source:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed