A Study on Edge Protection Against Delamination for Composite Laminates : (The Effects of Edge Shapes on Stress Singularities for Cross-Ply Laminates)

• MORIYA Kazamasa

• ICHIKAWA Takehiro

抄録

Edge delamination is one of the major factors that determines the fatigue strength of composite laminates ; it is attributed to the existence of highly intensified interlaminar stresses in the neighborhood of the free edge. In order to develop an efficient method to prevent edge delamination, the effects of the geometrical shape of the free edge on γ^δ stress singularity are discussed in this paper for cross-ply laminates. t is shown that the order of stress singularity can be controlled by varying the geometrical shape of the free edge and that the singularity disappears for some combinations of the angles formed by the edge surfaces of the two neighboring layers with respect to their interface. In the case of multilayer laminates, it is also possible to eliminate stress singularity completely or to reduce its order drastically at all interfaces by slanting the entire free edge at an appropriate angle.

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 31 (2), 209-214, 1988

  一般社団法人 日本機械学会

キーワード

• Composite Materials
• Composite Laminates
• Free Edge
• Delamination
• Edge Shape
• Stress Singularity

詳細情報

• CRID: 1390001205433787776
• NII論文ID: 110002348413
• NII書誌ID: AA10680585
• DOI: 10.1299/jsmea1988.31.2_209
• ISSN: 09148809
• Web Site: https://www.jstage.jst.go.jp/article/jsmea1988/31/2/31_2_209/_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