Steady-State Numerical Modeling of Size Effects in Wire Drawing

Kristian Jørgensen Juul, Kim Lau Nielsen, Christian Frithiof Niordson

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    Wire drawing processes at micron scale receive increased interest as micro wires are increasingly required in micro electrical components. At the micron scale, size effects become important and have to be taken into consideration. The goal is to optimize the semi-cone angle of the tool in terms of drawing force. The present study employs a steady-state modelling technique that omits the transient regime, thus creating a basis for comprehensive parameter studies. The steady-state procedure is based on the streamline integration method presented by Dean and Hutchinson [1]. This approach allows elastic-plastic loading/unloading to be taken into account and it is readily implemented into an existing finite element program. The numerical model deals with a time dependent material model that includes straingradient effects according, to Fleck and Willis theory [2]. The analysis indicates that size effects reduce the optimal semi-cone angle of the tool with up to 40%.
    Original languageEnglish
    Title of host publicationProceedings of 24th International Congress of Theoretical and Applied Mechanics
    Number of pages2
    Publication date2016
    ISBN (Electronic)978-0-660-05459-9
    Publication statusPublished - 2016
    Event24th International Congress of Theoretical and Applied Mechanics - Montreal, Canada
    Duration: 21 Aug 201626 Aug 2016

    Conference

    Conference24th International Congress of Theoretical and Applied Mechanics
    Country/TerritoryCanada
    CityMontreal
    Period21/08/201626/08/2016

    Fingerprint

    Dive into the research topics of 'Steady-State Numerical Modeling of Size Effects in Wire Drawing'. Together they form a unique fingerprint.

    Cite this