Fracture mechanical analysis of strengthened concrete tension members with one crack

Christian Skodborg Hansen, Henrik Stang

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    A concrete tension member strengthened 2 with fiber reinforced polymer plates on two sides 3 is analyzed with non-linear fracture mechanics. The 4 analysis of the strengthened tension member incorpo5 rates cohesive properties for both concrete and inter6 face between concrete and strengthening medium, and 7 results in closed formsolutions for the load-crack open8 ing relationship. To distinguish between single and 9 multiple cracking in a design process, structural clas10 sification parameters are derived. The minimum rein11 forcement ratio for obtainingmultiple cracking derived 12 from the structural classification parameters, is inves13 tigated in a non-dimensional analysis, and found to 14 depend strongly on the ratio between interfacial and 15 concrete fracture energies.
    Original languageEnglish
    JournalInternational Journal of Fracture
    Volume173
    Issue number1
    Pages (from-to)21-35
    ISSN0376-9429
    DOIs
    Publication statusPublished - 2012

    Keywords

    • Fracture mechanics
    • Cohesive zone modelling
    • Crack growth
    • Debonding
    • Fiber reinforced materials
    • Bonded joints
    • Interface fracture
    • Concrete

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