Intensity of Singular Stress Fields of an Embedded Fiber under Pull-Out Force

  • NODA Nao-Aki
    Department of Mechanical Engineering, Kyushu Inst. of Tech.
  • CHEN Dong
    Department of Mechanical Engineering, Kyushu Inst. of Tech.
  • INOUE Akane
    Department of Mechanical Engineering, Kyushu Inst. of Tech.
  • ZHANG Guowei
    Department of Mechanical Engineering, Kyushu Inst. of Tech.
  • TAKAKI Rei
    Department of Mechanical Engineering, Kyushu Inst. of Tech.
  • SANO Yoshikazu
    Department of Mechanical Engineering, Kyushu Inst. of Tech.

Bibliographic Information

Other Title
  • 繊維の引抜きにおける特異応力場の強さの解析
  • センイ ノ ヒキヌキ ニ オケル トクイ オウリョクジョウ ノ ツヨサ ノ カイセキ
Published
2018-12-15
Resource Type
journal article
DOI
  • 10.2472/jsms.67.1073
Publisher
The Society of Materials Science, Japan

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Description

<p>In this study, an embedded fiber is considered in matrix under pull-out force. Then, two intensities of singular stress fields (ISSF) are discussed appearing at the fiber end A and the intersection point E of the fiber and the surface. The analysis method focuses on the FEM stress at points A and E by applying the same FEM mesh pattern to the unknown and reference 2D models. To analyze the ISSF at A, the body force method solution is used as the reference model. To analyze the ISSF at E, the reciprocal work contour integral method (RWCIM) solution is used as the reference model. Then, the two ISSFs are compared by varying the fiber bonded length lin. When lin is shorter, the singular stress at A is larger than the singular stress at E. When lin is longer, the singular stress at E is larger than the singular stress at A.</p>

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