Interlaminar mode-II fracture toughness of a glass-fiber epoxy laminate

Heikki Keinänen, Tero Uuttu, Mikko Lehtonen

    Research output: Book/ReportReport

    Abstract

    In this work fracture mechanics and experimental mechanics approaches were used to characterize mode-II interlaminar fracture of a glass-fibre reinforced epoxy (GRFP) laminate. Mode-II interlaminar fracture toughness was characterized by using the end-notched flexure (ENF) test. The ENF-specimen was modelled by using both analytical (beam theory) and numerical (finite-element method) approaches. Calculated results were compared to experimental ones and the interlaminar mode-II fracture toughness of the particular laminate was determined. In the particular case the ENF-test is suitable for characterization the interlaminar fracture toughness.
    Original languageEnglish
    Place of PublicationEspoo
    PublisherVTT Technical Research Centre of Finland
    Number of pages33
    ISBN (Print)951-38-4223-1
    Publication statusPublished - 1992
    MoE publication typeNot Eligible

    Publication series

    SeriesVTT Publications
    Number105
    ISSN1235-0621

    Fingerprint

    Glass fibers
    Laminates
    Fracture toughness
    Fracture mechanics
    Mechanics
    Finite element method

    Keywords

    • epoxy laminates
    • fiberglass reinforced plastics
    • fracture mechanics
    • fracture strength
    • toughness
    • fracture tests
    • notch tests
    • bend tests
    • mathematical models
    • analysis (mathematics)
    • finite element analysis
    • calculations

    Cite this

    Keinänen, H., Uuttu, T., & Lehtonen, M. (1992). Interlaminar mode-II fracture toughness of a glass-fiber epoxy laminate. Espoo: VTT Technical Research Centre of Finland. VTT Publications, No. 105
    Keinänen, Heikki ; Uuttu, Tero ; Lehtonen, Mikko. / Interlaminar mode-II fracture toughness of a glass-fiber epoxy laminate. Espoo : VTT Technical Research Centre of Finland, 1992. 33 p. (VTT Publications; No. 105).
    @book{71394cb92eee4d88810cea60708ee99e,
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    abstract = "In this work fracture mechanics and experimental mechanics approaches were used to characterize mode-II interlaminar fracture of a glass-fibre reinforced epoxy (GRFP) laminate. Mode-II interlaminar fracture toughness was characterized by using the end-notched flexure (ENF) test. The ENF-specimen was modelled by using both analytical (beam theory) and numerical (finite-element method) approaches. Calculated results were compared to experimental ones and the interlaminar mode-II fracture toughness of the particular laminate was determined. In the particular case the ENF-test is suitable for characterization the interlaminar fracture toughness.",
    keywords = "epoxy laminates, fiberglass reinforced plastics, fracture mechanics, fracture strength, toughness, fracture tests, notch tests, bend tests, mathematical models, analysis (mathematics), finite element analysis, calculations",
    author = "Heikki Kein{\"a}nen and Tero Uuttu and Mikko Lehtonen",
    note = "Project code: KAU10022",
    year = "1992",
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    Keinänen, H, Uuttu, T & Lehtonen, M 1992, Interlaminar mode-II fracture toughness of a glass-fiber epoxy laminate. VTT Publications, no. 105, VTT Technical Research Centre of Finland, Espoo.

    Interlaminar mode-II fracture toughness of a glass-fiber epoxy laminate. / Keinänen, Heikki; Uuttu, Tero; Lehtonen, Mikko.

    Espoo : VTT Technical Research Centre of Finland, 1992. 33 p. (VTT Publications; No. 105).

    Research output: Book/ReportReport

    TY - BOOK

    T1 - Interlaminar mode-II fracture toughness of a glass-fiber epoxy laminate

    AU - Keinänen, Heikki

    AU - Uuttu, Tero

    AU - Lehtonen, Mikko

    N1 - Project code: KAU10022

    PY - 1992

    Y1 - 1992

    N2 - In this work fracture mechanics and experimental mechanics approaches were used to characterize mode-II interlaminar fracture of a glass-fibre reinforced epoxy (GRFP) laminate. Mode-II interlaminar fracture toughness was characterized by using the end-notched flexure (ENF) test. The ENF-specimen was modelled by using both analytical (beam theory) and numerical (finite-element method) approaches. Calculated results were compared to experimental ones and the interlaminar mode-II fracture toughness of the particular laminate was determined. In the particular case the ENF-test is suitable for characterization the interlaminar fracture toughness.

    AB - In this work fracture mechanics and experimental mechanics approaches were used to characterize mode-II interlaminar fracture of a glass-fibre reinforced epoxy (GRFP) laminate. Mode-II interlaminar fracture toughness was characterized by using the end-notched flexure (ENF) test. The ENF-specimen was modelled by using both analytical (beam theory) and numerical (finite-element method) approaches. Calculated results were compared to experimental ones and the interlaminar mode-II fracture toughness of the particular laminate was determined. In the particular case the ENF-test is suitable for characterization the interlaminar fracture toughness.

    KW - epoxy laminates

    KW - fiberglass reinforced plastics

    KW - fracture mechanics

    KW - fracture strength

    KW - toughness

    KW - fracture tests

    KW - notch tests

    KW - bend tests

    KW - mathematical models

    KW - analysis (mathematics)

    KW - finite element analysis

    KW - calculations

    M3 - Report

    SN - 951-38-4223-1

    T3 - VTT Publications

    BT - Interlaminar mode-II fracture toughness of a glass-fiber epoxy laminate

    PB - VTT Technical Research Centre of Finland

    CY - Espoo

    ER -

    Keinänen H, Uuttu T, Lehtonen M. Interlaminar mode-II fracture toughness of a glass-fiber epoxy laminate. Espoo: VTT Technical Research Centre of Finland, 1992. 33 p. (VTT Publications; No. 105).