Evaluation of the interfacial properties in polymer matrix composite

Experiments and elasto-plastic shear-lag analysis

Souta Kimura, Jun Koyanagi, Takayuki Hama, Hiroyuki Kawada

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    An energy-based analysis has been developed to evaluate interfacial adhesion between fiber and matrix in a single fiber composite over the years. However, the value of the energy-based parameter, e.g. an energy release rate, depends on a stress distribution predicted by a model employed. In the case of carbon fiber-reinforced plastics (CFRP), laser Raman spectroscopy (LRS) is significantly effective to validate the stress distribution predicted. The fragmentation tests with a model of carbon fiber-reinforced epoxy composite are performed, and LRS is used to detect a distribution of the fiber axial strain. An elasto-plastic shear-lag analysis methodology is employed, and a stress distribution is predicted under various approximations of s-s curve of the matrix resin and compared with the experimental results. Our recent energy-balance method, including an energy dissipation induced by plastic deformation around an interfacial debonding tip, is used to calculate an energy release rate to initiate an interfacial debonding (interfacial energy). An effect of the difference between the approximations on the value of the interfacial energy is discussed.

    Original languageEnglish
    Pages (from-to)167-172
    Number of pages6
    JournalKey Engineering Materials
    Volume340-341 I
    Publication statusPublished - 2007

    Fingerprint

    Polymer matrix composites
    Stress concentration
    Laser spectroscopy
    Energy release rate
    Debonding
    Plastics
    Interfacial energy
    Raman spectroscopy
    Fibers
    Experiments
    Carbon fiber reinforced plastics
    Composite materials
    Energy balance
    Carbon fibers
    Plastic deformation
    Energy dissipation
    Adhesion
    Resins

    Keywords

    • Elasto-plastic shear-lag analysis and LRS
    • Fragmentation test
    • Interfacial debonding

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Chemical Engineering (miscellaneous)

    Cite this

    Evaluation of the interfacial properties in polymer matrix composite : Experiments and elasto-plastic shear-lag analysis. / Kimura, Souta; Koyanagi, Jun; Hama, Takayuki; Kawada, Hiroyuki.

    In: Key Engineering Materials, Vol. 340-341 I, 2007, p. 167-172.

    Research output: Contribution to journalArticle

    @article{35963a9d45ff48829a6f2c8309accd36,
    title = "Evaluation of the interfacial properties in polymer matrix composite: Experiments and elasto-plastic shear-lag analysis",
    abstract = "An energy-based analysis has been developed to evaluate interfacial adhesion between fiber and matrix in a single fiber composite over the years. However, the value of the energy-based parameter, e.g. an energy release rate, depends on a stress distribution predicted by a model employed. In the case of carbon fiber-reinforced plastics (CFRP), laser Raman spectroscopy (LRS) is significantly effective to validate the stress distribution predicted. The fragmentation tests with a model of carbon fiber-reinforced epoxy composite are performed, and LRS is used to detect a distribution of the fiber axial strain. An elasto-plastic shear-lag analysis methodology is employed, and a stress distribution is predicted under various approximations of s-s curve of the matrix resin and compared with the experimental results. Our recent energy-balance method, including an energy dissipation induced by plastic deformation around an interfacial debonding tip, is used to calculate an energy release rate to initiate an interfacial debonding (interfacial energy). An effect of the difference between the approximations on the value of the interfacial energy is discussed.",
    keywords = "Elasto-plastic shear-lag analysis and LRS, Fragmentation test, Interfacial debonding",
    author = "Souta Kimura and Jun Koyanagi and Takayuki Hama and Hiroyuki Kawada",
    year = "2007",
    language = "English",
    volume = "340-341 I",
    pages = "167--172",
    journal = "Key Engineering Materials",
    issn = "1013-9826",
    publisher = "Trans Tech Publications",

    }

    TY - JOUR

    T1 - Evaluation of the interfacial properties in polymer matrix composite

    T2 - Experiments and elasto-plastic shear-lag analysis

    AU - Kimura, Souta

    AU - Koyanagi, Jun

    AU - Hama, Takayuki

    AU - Kawada, Hiroyuki

    PY - 2007

    Y1 - 2007

    N2 - An energy-based analysis has been developed to evaluate interfacial adhesion between fiber and matrix in a single fiber composite over the years. However, the value of the energy-based parameter, e.g. an energy release rate, depends on a stress distribution predicted by a model employed. In the case of carbon fiber-reinforced plastics (CFRP), laser Raman spectroscopy (LRS) is significantly effective to validate the stress distribution predicted. The fragmentation tests with a model of carbon fiber-reinforced epoxy composite are performed, and LRS is used to detect a distribution of the fiber axial strain. An elasto-plastic shear-lag analysis methodology is employed, and a stress distribution is predicted under various approximations of s-s curve of the matrix resin and compared with the experimental results. Our recent energy-balance method, including an energy dissipation induced by plastic deformation around an interfacial debonding tip, is used to calculate an energy release rate to initiate an interfacial debonding (interfacial energy). An effect of the difference between the approximations on the value of the interfacial energy is discussed.

    AB - An energy-based analysis has been developed to evaluate interfacial adhesion between fiber and matrix in a single fiber composite over the years. However, the value of the energy-based parameter, e.g. an energy release rate, depends on a stress distribution predicted by a model employed. In the case of carbon fiber-reinforced plastics (CFRP), laser Raman spectroscopy (LRS) is significantly effective to validate the stress distribution predicted. The fragmentation tests with a model of carbon fiber-reinforced epoxy composite are performed, and LRS is used to detect a distribution of the fiber axial strain. An elasto-plastic shear-lag analysis methodology is employed, and a stress distribution is predicted under various approximations of s-s curve of the matrix resin and compared with the experimental results. Our recent energy-balance method, including an energy dissipation induced by plastic deformation around an interfacial debonding tip, is used to calculate an energy release rate to initiate an interfacial debonding (interfacial energy). An effect of the difference between the approximations on the value of the interfacial energy is discussed.

    KW - Elasto-plastic shear-lag analysis and LRS

    KW - Fragmentation test

    KW - Interfacial debonding

    UR - http://www.scopus.com/inward/record.url?scp=34147191042&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=34147191042&partnerID=8YFLogxK

    M3 - Article

    VL - 340-341 I

    SP - 167

    EP - 172

    JO - Key Engineering Materials

    JF - Key Engineering Materials

    SN - 1013-9826

    ER -