Damage Progress in the Stitched CFRP Laminates with Open-Hole

• YOSHIMURA Akinori

  Graduate School of Frontier Sciences, The University of Tokyo

• YASHIRO Shigeki

  Research Institute of Instrumentation Frontier, National Institute of Advanced Industrial Science and Technology (AIST)

• TAKEDA Nobuo

  Graduate School of Frontier Sciences, The University of Tokyo

Bibliographic Information

Other Title

• 円孔を有する縫合ＣＦＲＰ積層板の損傷進展
• エンコウ オ ユウスル ホウゴウ CFRP セキソウバン ノ ソンショウ シンテン

Abstract

This study experimentally and numerically investigated the tensile damage progress in stitched CFRP laminate with an open-hole. Detailed damage observation in the tensile tests revealed that stitching had almost no effect on the onset of the ply cracks. Delamination also appeared at the all ply interfaces near the hole, and was connected by neighboring ply cracks. We then performed damage extension simulation for holed stitched-laminate using a layer-wise finite element model with cohesive elements for the damage (ply cracks and delamination) and beam elements as stitch threads. Simulation results confirmed that the delamination extended toward the area surrounded by the ply cracks in the neighboring two layers and the edge of the open-hole. Moreover, we demonstrated that stitching could suppress the delamination progress from the hole edge.

Journal

• Journal of the Japan Society for Composite Materials

  Journal of the Japan Society for Composite Materials 34 (1), 14-20, 2008

  The Japan Society for Composite Materials

Details

• CRID: 1390282679599528832
• NII Article ID: 10023982814
• NII Book ID: AN00196748
• DOI: 10.6089/jscm.34.14
• ISSN: 18848559
• ISSN: 03852563
• NDL BIB ID: 9351419
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9351419
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed