Application of the GTN Model in Ductile Fracture Prediction of 7075-T651 Aluminum Alloy

SF Hosseini, Saeid Hadidi Moud

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)


    In this paper the capability of Gurson-Tvergaard-Needleman (GTN) model in the
    prediction of ductile damage in 7075-T651 aluminum alloy is investigated. For this
    purpose, three types of specimens were tested: Standard tensile bars, Round notched
    bar (RNB) specimens and compact tension (C(T)) specimens. Standard tensile bar
    tests were used to obtain the mechanical properties of the material and to calibrate
    the independent parameters of GTN model. RNB and C(T) specimen test results
    were used for validation of the calibrated parameters. Finite element analyses were
    carried out using ABAQUS commercial software for two purposes; calibration of
    the GTN model parameters and validation of the model predictions. The comparison
    between the finite element analyses and the test results suggested that the GTN
    model is capable of damage prediction in notched specimens, but not a good in
    cracked specimens. Finally, To show the applicability of the model in industry-level
    problems, the model is used for damage predictions of internal pressure vessels
    made of 7075-t651 aluminum alloy.
    Original languageEnglish
    Pages (from-to)326-333
    Number of pages8
    JournalJournal of Solid Mechanics
    Issue number2
    Publication statusPublished - 2016


    • Ductile fracture
    • 7075-T651 aluminum alloy
    • Calibrated parameters
    • GTN model


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