Microscale testing and modelling for damage tolerant composite materials and structures

Bent F. Sørensen*

*Corresponding author for this work

    Research output: Contribution to journalConference articleResearchpeer-review

    39 Downloads (Pure)

    Abstract

    There is a need for damage tolerant composite material for very large engineering structures such as wind turbine rotor blades. The development of improved composite materials with higher damage tolerance will be most efficiently guided by models of the relevant damage modes. Two damage modes are considered in the present paper: Fatigue damage due to in-plane tensile stresses in the fibre direction and cyclic delamination crack growth from a ply drop. For both failure modes the damage evolution is considered at macro- and microscale. Micromechanical models are used to illustrate how changes in the mechanical properties of fibre, matrix and the fibre/matrix interface can lead to an increased damage tolerance material. Also, micromechanical testing methods for characterizing the relevant micromechanical parameters are discussed.
    Original languageEnglish
    Article number012004
    JournalIOP Conference Series: Materials Science and Engineering
    Volume942
    Issue number1
    Number of pages22
    ISSN1757-8981
    DOIs
    Publication statusPublished - 2020
    Event41st Risø International Symposium on Materials Science - Online event, Denmark
    Duration: 7 Sep 202010 Sep 2020

    Conference

    Conference41st Risø International Symposium on Materials Science
    Country/TerritoryDenmark
    CityOnline event
    Period07/09/202010/09/2020

    Fingerprint

    Dive into the research topics of 'Microscale testing and modelling for damage tolerant composite materials and structures'. Together they form a unique fingerprint.

    Cite this