Prediction of the Tension-Softening Relation for Short-Fiber-Reinforced SMC Composites by a Probabilistic Model

• SEKINE Hideki

• SUZUKI Hiroshi

抄録

A new probabilistic model has been proposed to predict the tension-softening relation for short-fiber-reinforced SMC composites by using the measured debond and pull-out lengths of fiber bundles. The relationship between cohesive stress and crack opening displacement, namely the tension-softening relation, is determined statistically by the probabilistic expectation of loads acting on the bridging fiber bundles at a fictitious crack. It is found that the area below the tension-softening curve is nearly equal to the apparent fracture energy of the composite, while the maximum value of the tension-softening curve is somewhat higher than the unnotched tensile strength of the composite. Comparison of the tension-softening relation with that estimated by a technique based on the J-integral is also made. Furthermore, the influences of fiber bundle-matrix interfacial conditions on the tension-softening relation are clarified.

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), 228-233, 1991

  一般社団法人 日本機械学会

キーワード

• Composite Material
• Probabilistic Model
• Fracture Toughness
• Tension-Softening Relation
• Debond Length
• Pull-Out Length

詳細情報

• CRID: 1390282680408359680
• NII論文ID: 110002348009
• NII書誌ID: AA10680585
• DOI: 10.1299/jsmea1988.34.2_228
• ISSN: 09148809
• Web Site: https://www.jstage.jst.go.jp/article/jsmea1988/34/2/34_2_228/_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