The Simulation of Damage Extension in Continuous Fiber-Reinforced Cross-Ply Laminates

• KAMIYA Shoji

• SEKINE Hideki

抄録

Damage ahead of notch tips in continuous fiber-reinforced cross-ply laminates consists of a group of microcracks extending parallel to fibers in each ply. In this paper, we try to simulate the damage extension by applying the concept of fracture mechanics directly to the extending microcracks. Elastic strain energy released by the extension of the microcracks was measured by using a compliance method with quick unloading, which is separated from inelastically dissipated energy due to the viscoelastic property of matrix resin. The experimental result suggests that the microcracks extend on the condition of constant released elastic strain energy per unit area of microcracks. Acoording to this result, we have derived the governing equation of damage extension, which is the modified Griffith's criterion for local microcrack extension. This equation enables us to simulate the damage extension, and the simulation results appear to be in perfect agreement with the experimental results.

収録刊行物

• JSME international journal. Ser. 1, Solid mechanics, strength of materials

  JSME international journal. Ser. 1, Solid mechanics, strength of materials 34 (2), 214-220, 1991

  一般社団法人 日本機械学会

キーワード

• Composite Material
• Fracture Mechanics
• Cross-Ply Laminate
• Damage Extension
• Microcrack
• Released Elastic Strain Energy
• Numerical Simulation

詳細情報

• CRID: 1390282680408357760
• NII論文ID: 110002348007
• NII書誌ID: AA10680585
• DOI: 10.1299/jsmea1988.34.2_214
• ISSN: 09148809
• Web Site: https://www.jstage.jst.go.jp/article/jsmea1988/34/2/34_2_214/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可