A Study on the Static Tensile Strength of Notched CFRP Specimens

Hironobu Nisitani, Yun Hae Kim, Terutaka Yamaguchi, Hiroshi Noguchi

研究成果: ジャーナルへの寄稿記事

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In this study, the static tensile tests of Polyethernitrile (ID 300) and CFRP in which the carbon fiber was combined in an ID 300 resin matrix with a fiber content of 30 %, by weight, were done by using smooth and notched specimens at room temperature. The results were discussed based on linear notch mechanics. The relation σ-1/ρ is to be classified into two parts, namely, a part where σ decreases with decreasing ρ and a part where σ is nearly constant regardless of ρ (σ: nominal stress at infinity, ρ: notch tip radius). The similar phenomenon can be seen in the fatigue tests of notched specimens under rotating bending or push-pull. The fracture of ID 300 and CFRP specimens is controlled by the elastic maximum stress, σmaxc and the notch tip radius, p, alone, independently of the other geometrical conditions. Linear notch mechanics is very useful for analyzing the static tensile fracture behavior of the notched ID 300 and CFRP specimens.

元の言語英語
ページ(範囲)1643-1647
ページ数5
ジャーナルTransactions of the Japan Society of Mechanical Engineers Series A
57
発行部数539
DOI
出版物ステータス出版済み - 1 1 1991

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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