Plastic Flow Localization and Ductile Fracture

Viggo Tvergaard*

*Corresponding author for this work

    Research output: Contribution to journalJournal articleResearchpeer-review

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    Abstract

    To treat tensile instabilities the main points of the theory of uniqueness and bifurcation in elastic-plastic solids are outlined. Also simple theories for localization of plastic flow are discussed. Instability predictions are highly sensitive to the material model applied. Ductile fracture in metals involves the nucleation and growth of micro-voids to coalescense. Such porous ductile materials also show localization of plastic flow. Analyses for low stress triaxiality show failure mechanisms involving collapse of voids into micro-cracks that subsequently interact.
    Original languageEnglish
    Article number012005
    Book seriesJournal of Physics: Conference Series
    Volume1063
    Issue number1
    Number of pages7
    ISSN1742-6596
    DOIs
    Publication statusPublished - 2018

    Bibliographical note

    Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd

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