Multiscale deep drawing analysis of dual-phase steels using grain cluster-based RGC scheme

D. D. Tjahjanto, P. Eisenlohr, F. Roters

    Research output: Contribution to journalArticle

    Abstract

    Multiscale modelling and simulation play an important role in sheet metal forming analysis, since the overall material responses at macroscopic engineering scales, e.g. formability and anisotropy, are strongly influenced by microstructural properties, such as grain size and crystal orientations (texture). In the present report, multiscale analysis on deep drawing of dual-phase steels is performed using an efficient grain cluster-based homogenization scheme. The homogenization scheme, called relaxed grain cluster (RGC), is based on a generalization of the grain cluster concept, where a (representative) volume element consists of p q r (hexahedral) grains. In this scheme, variation of the strain or deformation of individual grains is taken into account through the, so-called, interface relaxation, which is formulated within an energy minimization framework. An interfacial penalty term is introduced into the energy minimization framework in order to account for the effects of grain boundaries. The grain cluster-based homogenization scheme has been implemented and incorporated into the advanced material simulation platform DAMASK, which purposes to bridge the macroscale boundary value problems associated with deep drawing analysis to the micromechanical constitutive law, e.g. crystal plasticity model. Standard Lankford anisotropy tests are performed to validate the model parameters prior to the deep drawing analysis. Model predictions for the deep drawing simulations are analyzed and compared to the corresponding experimental data. The result shows that the predictions of the model are in a very good agreement with the experimental measurement.

    Original languageEnglish (US)
    Article number045005
    JournalModelling and Simulation in Materials Science and Engineering
    Volume23
    Issue number4
    DOIs
    StatePublished - Jun 1 2015

    Profile

    Eyelid Neoplasms
    Deep drawing
    Anthralin
    deep drawing
    Homogenization
    Model
    homogenizing
    simulation
    Automobiles
    Traffic Accidents
    Basement Membrane
    Anisotropy
    Steel
    Energy minimization
    steels
    anisotropy
    optimization
    predictions
    crystals
    energy

    Keywords

    • dual-phase steels
    • homogenization scheme
    • polycrystalline plasticity
    • sheet metal forming

    ASJC Scopus subject areas

    • Modeling and Simulation
    • Condensed Matter Physics
    • Materials Science(all)
    • Mechanics of Materials
    • Computer Science Applications

    Cite this

    Multiscale deep drawing analysis of dual-phase steels using grain cluster-based RGC scheme. / Tjahjanto, D. D.; Eisenlohr, P.; Roters, F.

    In: Modelling and Simulation in Materials Science and Engineering, Vol. 23, No. 4, 045005, 01.06.2015.

    Research output: Contribution to journalArticle

    Tjahjanto, D. D.; Eisenlohr, P.; Roters, F. / Multiscale deep drawing analysis of dual-phase steels using grain cluster-based RGC scheme.

    In: Modelling and Simulation in Materials Science and Engineering, Vol. 23, No. 4, 045005, 01.06.2015.

    Research output: Contribution to journalArticle

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