TR73

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Dr.-Ing. Stefan Schmaltz



Friedrich-Alexander-Universität Erlangen-Nürnberg
Egerlandstr. 5, D-91058 Erlangen
Tel.: (+49) 09131 85 - 2 85 15
Fax: (+49) 09131 85 - 2 85 03
Mail address: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Homepage at the Institute

Formulation, implementation and experimental/computational identification of an anisotropic
elasto-plastic constitutive model with anisotropic hardening at large strains.

  • Experimental characterization of the material hardening in the uni- and biaxial region with utilization of an optical full-field deformation measurement system

  • Modelling of the anisotropic material behavior with anisotropic hardening

anisoverfest                       matmodell

  • Utilization of a FEMU (Finite Element Model Updating) routine for the indirect parameter identification


Projects


Working Groups


Publications

    2018

    • Härtel, M.; Pfeiffer, S.; Schmaltz, S.; Söhngen, B.; Kulawinski, D.; Willner, K.; Henkel, S.; Biermann, H.; Wagner, M.F.-X.: On the identification of an effective cross section for a cruciform specimen. In: Strain, 54(2018)1, John Wiley & Sons Ltd, pp. 1-12

    2015

    • Schmaltz, S.: Inverse Materialparameteridentifikation von Blechwerkstoffen für ein anisotropes elasto-plastisches Materialmodell bei finiten Deformationen . In: P. Steinmann, K. Willner (Edt.): Dissertation, Schriftenreihe Technische Mechanik, 14(2015), Erlangen: FAU Erlangen-Nürnberg, pp. 1-171
    • Zillmann, B.; Wagner, M. F.-X.; Schmaltz, S.; Schmidl, E.; Lampke, T.; Willner, K.; Halle, T.: In-plane biaxial compression and tension testing of thin sheet materials. In: International Journal of Solids and Structures, 66(2015), pp. 111-120

    2014

    • Schmaltz, S.; Willner, K.: Identification of material behavior via a Finite Element Model Updating strategy. In: P. Steinmann, G. Leugering (Edt.): Proc. Appl. Math. Mech., 14(2014)1, Wiley, pp. 439-440
    • Schmaltz, S.; Willner, K.: Comparison of Different Biaxial Tests for the Inverse Identification of Sheet Steel Material Parameters. In: Strain, 50(2014)5, pp. 389-403

    2013

    • Schmaltz, S.; Willner, K.: Implementierung und Anpassung eines Materialmodells für FE-Simulationen in der Blechmassivumformung. In: Lehrstuhl für Umformtechnik, Montanuniversität Leoben (Edt.): XXXII. Verformungskundliches Kolloquium, 32(2013)1, Leoben, Österreich, pp. 95-100
    • Schmaltz, S.; Willner, K.: Sheet steel material parameter identification utilizing a biaxial tensile test and optical full-field measurements. In: A. Chrysochoos, H. Louche B. Wattrisse (Edt.): PhotoMechanics 2013, International Conference on Full-Field Measurement Techniques and their Applications in Experimental Solid Mechanics, (2013), Montpellier, France, pp. 89–92
    • Schmaltz, S.; Willner, K.: Material modelling and parameter identification for sheet-bulk metal forming. In: Onate, E.; Owen, D.R.J.; Peric, D.; Suarez, B. (Edt.): Proceedings of the XII International Conference on Computational plasticity - Fundamentals and Applications, 12(2013)1, Barcelona, Spain, pp. 39-50
    • Schmaltz, S.; Willner, K.: Material Parameter Identification utilizing Optical Full-Field Strain Measurement and Digital Image Correlation. In: Journal of JSEM, 13(2013)1, pp. 120-125
    • Schmaltz, S.; Landkammer, P.; Beyer, F.; Kumor, D.; Rademacher, A.; Blum, H.; Steinmann, P.; Willner, K.: Vorstellung eines Simulationsbenchmarks für die Blechmassivumformung. In: Merklein, M.; Behrens, B. A., Tekkaya, A. E. (Edt.): 2. Workshop Blechmassivumformung, (2013), Bamberg: Meisenbach, pp. 53-68

    2012

    • Lehmann, E.; Schmaltz, S.; Germain, S.; Faßmann, D.; Weber, C.; Löhnert, S.; Schaper, M.; Steinmann, P.; Willner, K.; Wriggers, P.: Material model identification for DC04 based on the numerical modelling of the polycrystalline microstructure and experimental data. In: ESAFORM 2012 - Key Engineering Materials (Edt.): 504(2012), doi:10.4028/www.scientific.net/KEM.504-506.993, pp. 993-998
    • Schmaltz, S.; Willner, K.: Material Parameter Identification utilizing Optical Full-Field Strain Measurement and Digital Image Correlation. In: Proc. of ISEM-ACEM-SEM-7th ISEM’12-Taipei Conference, (2012), Taipei, Taiwan (R.O.C.), published
    • Schmaltz, S.; Willner, K.: Material Parameter Optimization utilizing full-field strain measurement data and the Finite Element Method. In: Lehrstuhl für Umformtechnik, Montanuniversität Leoben (Edt.): XXXI. Verformungskundliches Kolloquium, 31(2012)1, Leoben, Österreich, pp. 13-18

    2011

    • Lehmann, E.; Schmaltz, S.; Faßmann, D.; Germain, S.; Weber, C.; Löhnert, S.; Schaper, M.; Bach, F.; Steinmann, P.; Willner, K.; Wriggers, P.: Identifikation eines Materialmodells für den DC04 basierend auf der numerischen Modellierung der polykristallinen Mikrostruktur und experimentellen Daten(2011), In: M. Merklein, Fr.-W. Bach, A.E. Tekkaya (Hrsg.): Tagungsband zum 1. Workshop Blechmassivumformung 2011, pp. 13-32
    • Schmaltz, S.; Willner, K.: Identification of orthotropic plastic material parameters for deep-drawing steel using DIC and FEMU(2011), published on CD
    • Schmaltz, S.; Willner, K.: Identification of the yield surface for sheet steel using an optical measurement system(2011), 10th Youth Symposium on Experimental Solid Mechanics, Chemnitz, Germany, published
    • Schmaltz, S.; Willner, K.: DOI: 10.1002/pamm.201110208

    Presentations

      2014

      • 14.03.2014: Schmaltz, S.: Identification of material behavior via a Finite Element Model Updating strategy, 85th GAMM, Erlangen, Germany
      • 08.07.2014: Schmaltz, S.: Inverse sheet steel material parameter identification via FEMU and DIC using biaxial testing, 16th ICEM, Cambridge, UK

      2013

      • 25.02.2013: Schmaltz, S.: Implementierung und Anpassung eines Materialmodells für FE-Simulationen in der Blechmassivumformung, Donnersbach, Austria
      • 27.05.2013: Schmaltz, S.: Sheet steel material parameter identification utilizing a biaxial tensile test and optical full-field measurements, PhotoMechanics 2013, Montpellier, France
      • 04.09.2013: Schmaltz, S.: Material modelling and parameter identification for sheet-bulk metal forming, COMPLAS 2013, Barcelona, Spain
      • 13.11.2013: Schmaltz, S.: Vorstellung eines Simulationsbenchmarks für die Blechmassivumformung, 2. Workshop Blechmassivumformung, Erlangen, Germany

      2012

      • 26.02.2012: Schmaltz, S.: Material parameter optimization utilizing full-field strain measurement data and the Finite Element Method, Colloquium on metal forming, Donnersbach, Austria
      • 14.03.2012: Germain, S.; Lehmann, E.; Schmaltz, S.; Faßmann, D.; Weber, C.; Löhnert, S.; Schaper, M.; Bach, F.; Steinmann, P.; Willner, K.; Wriggers, P.: Material model identification for DC04 based on the numerical modelling of the polycrystalline microstructure and experimental data, ESAFORM 2012, Erlangen, Germany
      • 05.11.2012: Schmaltz, S.: Material Parameter Identification utilizing Optical Full-Field Strain Measurement and Digital Image Correlation, ISEM-ACEM-SEM-7th ISEM’12-Taipei Conference, Taipei, Taiwan (R.O.C.)

      2011

      • 19.04.2011: Schmaltz, S.: Optimization of elastic material parameters of sheet metal with FEMU and DIC, 82nd GAMM, Graz, Austria
      • 28.05.2011: Schmaltz, S.: Identification of the yield surface for sheet steel using an optical measurement system, YSESM, Chemnitz, Germany
      • 07.09.2011: Schmaltz, S.: Identification of orthotropic plastic material parameters for deep-drawing steel using DIC and FEMU, COMPLAS 2011, Barcelona, Spain