A New Static and Fatigue Compression Test Method for Composites

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    A new test method to determine the compressive properties of composite materials under both static and fatigue loading was developed. The novel fixture is based on the concept of transmitting the load by a fixed ratio of end-to-shear loading. The end-to-shear load ratio is kept fixed during the test through a mechanical mechanism, which automatically maintains the gripping pressure. The combined loading method has proven very efficient in static loading and is used in the new fixture which is specially designed for fatigue testing. Optimum gripping (shear loading) and alignment of the test coupon are achieved throughout the fatigue life. The fatigue strength obtained is more reliable because bending of the specimen due to poor gripping and alignment is minimised. The application of the new fixture to static and fatigue compression is demonstrated by using unidirectional carbon/epoxy and glass/polyester composite systems. Repeatable results and acceptable failure modes are obtained under both static and fatigue loading.
    Original languageEnglish
    JournalStrain
    Volume47
    Issue number1
    Pages (from-to)21-28
    ISSN0039-2103
    DOIs
    Publication statusPublished - 2011

    Keywords

    • Materials and energy storage
    • Light strong materials for energy purposes

    Cite this

    @article{b8090968a73142d3af1e28bf1ebca9c3,
    title = "A New Static and Fatigue Compression Test Method for Composites",
    abstract = "A new test method to determine the compressive properties of composite materials under both static and fatigue loading was developed. The novel fixture is based on the concept of transmitting the load by a fixed ratio of end-to-shear loading. The end-to-shear load ratio is kept fixed during the test through a mechanical mechanism, which automatically maintains the gripping pressure. The combined loading method has proven very efficient in static loading and is used in the new fixture which is specially designed for fatigue testing. Optimum gripping (shear loading) and alignment of the test coupon are achieved throughout the fatigue life. The fatigue strength obtained is more reliable because bending of the specimen due to poor gripping and alignment is minimised. The application of the new fixture to static and fatigue compression is demonstrated by using unidirectional carbon/epoxy and glass/polyester composite systems. Repeatable results and acceptable failure modes are obtained under both static and fatigue loading.",
    keywords = "Materials and energy storage, Light strong materials for energy purposes, Lette st{\ae}rke materialer til energiform{\aa}l, Materialer og energilagring",
    author = "Bech, {Jakob Ilsted} and Stergios Goutianos and {L{\o}gstrup Andersen}, Tom and R.K. Torekov and Povl Br{\o}ndsted",
    year = "2011",
    doi = "10.1111/j.1475-1305.2008.00521.x",
    language = "English",
    volume = "47",
    pages = "21--28",
    journal = "Strain",
    issn = "0039-2103",
    publisher = "Wiley-Blackwell",
    number = "1",

    }

    A New Static and Fatigue Compression Test Method for Composites. / Bech, Jakob Ilsted; Goutianos, Stergios; Løgstrup Andersen, Tom; Torekov, R.K.; Brøndsted, Povl.

    In: Strain, Vol. 47, No. 1, 2011, p. 21-28.

    Research output: Contribution to journalJournal articleResearchpeer-review

    TY - JOUR

    T1 - A New Static and Fatigue Compression Test Method for Composites

    AU - Bech, Jakob Ilsted

    AU - Goutianos, Stergios

    AU - Løgstrup Andersen, Tom

    AU - Torekov, R.K.

    AU - Brøndsted, Povl

    PY - 2011

    Y1 - 2011

    N2 - A new test method to determine the compressive properties of composite materials under both static and fatigue loading was developed. The novel fixture is based on the concept of transmitting the load by a fixed ratio of end-to-shear loading. The end-to-shear load ratio is kept fixed during the test through a mechanical mechanism, which automatically maintains the gripping pressure. The combined loading method has proven very efficient in static loading and is used in the new fixture which is specially designed for fatigue testing. Optimum gripping (shear loading) and alignment of the test coupon are achieved throughout the fatigue life. The fatigue strength obtained is more reliable because bending of the specimen due to poor gripping and alignment is minimised. The application of the new fixture to static and fatigue compression is demonstrated by using unidirectional carbon/epoxy and glass/polyester composite systems. Repeatable results and acceptable failure modes are obtained under both static and fatigue loading.

    AB - A new test method to determine the compressive properties of composite materials under both static and fatigue loading was developed. The novel fixture is based on the concept of transmitting the load by a fixed ratio of end-to-shear loading. The end-to-shear load ratio is kept fixed during the test through a mechanical mechanism, which automatically maintains the gripping pressure. The combined loading method has proven very efficient in static loading and is used in the new fixture which is specially designed for fatigue testing. Optimum gripping (shear loading) and alignment of the test coupon are achieved throughout the fatigue life. The fatigue strength obtained is more reliable because bending of the specimen due to poor gripping and alignment is minimised. The application of the new fixture to static and fatigue compression is demonstrated by using unidirectional carbon/epoxy and glass/polyester composite systems. Repeatable results and acceptable failure modes are obtained under both static and fatigue loading.

    KW - Materials and energy storage

    KW - Light strong materials for energy purposes

    KW - Lette stærke materialer til energiformål

    KW - Materialer og energilagring

    U2 - 10.1111/j.1475-1305.2008.00521.x

    DO - 10.1111/j.1475-1305.2008.00521.x

    M3 - Journal article

    VL - 47

    SP - 21

    EP - 28

    JO - Strain

    JF - Strain

    SN - 0039-2103

    IS - 1

    ER -