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Dr.-Ing. Richard Ostwald

Dr.-Ing. Richard Ostwald Foto von Dr.-Ing. Richard Ostwald

Telefon
+49 231 755-5602

Fax
+49 231 755-2688

Sprechzeiten
by appointment

Adresse

Raum 125

Weitere Kontaktdaten

orcid.org/0000-0003-2147-8444

Details

 Curriculum Vitae

 Professional Experience

since 05/2018 Interim Professor of Mechanics, Faculty of Production Engineering, Bremen University
02/2017–04/2017 Visiting Researcher, Department of Mechanical Engineering, Stanford University, CA, USA
Prof. Ellen Kuhl
03/2016–04/2018 Elected Representative of the Scientific Staff, Faculty of Mechanical Engineering, TU Dortmund
since 07/2015 Senior Researcher, Institute of Mechanics, TU Dortmund
02/2013 Visiting Researcher, Department of Mechanical Engineering, University of Zaragoza, Spain
Prof. Miguel Ángel Martínez Barca
07/2009–06/2015 Research Assistant, Institute of Mechanics, TU Dortmund
10/2008–06/2009 Student Intern, Siemens AG, Mülheim/Ruhr
Turbines and Generators Factory, Mechanical Calculations Department
01/2006–06/2008 Elected Student Representative in the Mechanical Engineering Faculty Council, TU Dortmund
02/2005–09/2008 Student Assistant, Chair of Mechanics, TU Dortmund
Prof. Bob Svendsen

 Education

05/2015 Doctoral Degree (Dr.-Ing.), Thesis Title: "Modelling and simulation of phase-transformations in elasto-plastic polycrystals"
06/2009 Diploma Degree (Dipl.-Ing.), Thesis Title: "Fatigue assessment of welded steel structures based on harmonic analyses"
10/2004–09/2008 Studies of Mechanical Engineering, TU Dortmund
Emphases: Fluid Flow Engines, Propulsion Technology, Simulation Technology

 Awards

07/2017 Selection for the Global Young Faculty Program, Mercator Research Center Ruhr
11/2016 Rudolf Chaudoire Award, TU Dortmund University
05/2016 GACM Best Ph.D. Award 2015, German Association for Computational Mechanics
12/2015 Best Thesis Award (Dissertationspreis), TU Dortmund University
09/2015 Jan Szmelter Award for the best research paper, Polish Association for Computational Mechanics
03/2010 Hans Uhde Award for exceptional study achievements, ThyssenKrupp/Uhde GmbH


 Teaching

  • Elaboration and implementation of tutorial courses for different advanced Bachelor and advanced Master lectures, particularly
  • Tutorial courses and lectures
  • Supervision of student theses
    • Finite element-based parameter identification for a polymer under inhomogeneous deformations
      Master thesis – in progress
    • Finite element-based computation of diffusion problems
      Project thesis – in progress
    • A computational framework for the geometric intersection of general polyhedra
      Project thesis – in progress
    • Reconstruction of patient specific artery data based on magnetic resonance tomography
      Project thesis – in progress
    • Computation of energy barriers by minimization of implicit functions
      Project thesis – in progress
    • Simulation of plasticity using stress mode decompositions
      Bachelor thesis – completed 11/2018
      Author: M. Böddecker
    • Thermomechanische Ermüdung mit Modellvalidierung für die Lebensdauerberechnung eines Zylinderkopfes für einen Großdieselmotor
      Bachelor thesis – completed 10/2018
      Author: J. Gerlach
    • Parameter identification for a visco-elastic polymer under large deformations
      Project thesis – completed 06/2018
      Author: M. Barghidarian
    • Automatisierte Abaqus-Parameterstudien für eine regularisierte Schädigungsformulierung
      Project thesis – completed 06/2018
      Author: A. Borutta
    • Simulation of shape memory alloys using stress mode dependent weighting functions
      Project thesis – completed 04/2018
      Author: M. Böddecker
    • Efficient numerical integration on the surface of a sphere
      Project thesis – completed 12/2017
      Author: H. Lammen
    • Optimierungsbasierte Kalibrierung eines visko-elastischen Materialmodells und Anwendung in der nichtlinearen FEM
      Bachelor thesis – completed 04/2017
      Author: S. Kimpel
    • Analysis of damage formulations for the finite element based simulation of forming processes
      Master thesis – completed 01/2017
      Author: A. Schowtjak
    • Implementation of a coupled model for the three-dimensional finite strain simulation of phase transformation and plasticity
      Project thesis – completed 09/2016
      Author: T. Keute
    • Implementation of hyperelastic finite strain micro-sphere models
      Bachelor thesis – completed 08/2016
      Author: H. Lammen
    • A contribution to the simulation of phase-transformations in grinding processes
      Project thesis – completed 05/2016
      Author: J. Grodotzki
    • A finite deformation thermo-elastic micro-sphere model for rubber-like materials
      Master thesis – completed 04/2016
      Author: P. Oppermann
    • Experiments and algorithmic treatment of material parameter identification utilizing optical displacement field measurements
      Master thesis – completed 02/2016
      Author: L. Rose
    • Zur Optimierung des Designs von Antriebstrommeln inklusive FKM-Dauerfestigkeitsnachweis
      Bachelor thesis – completed 11/2015
      Author: T. Keute
    • Fibre-Reinforced Composites – Finite Deformation Higher-Gradient Theory and Mixed Finite Element Formulation
      Master thesis – completed 10/2015
      Author: T. Asmanoglo
    • Optimization-based Parameter Identification for Inhomogeneous Problems
      Project thesis – completed 07/2015
      Author: L. Rose
    • Analyse von Effizienz und Stabilität verschiedener Zeitintegrationsverfahren zur Lösung von Differentialgleichungssystemen eines Festkörper-Phasentransformationsmodells
      Project thesis – completed 04/2015
      Author: S. Dohm
    • Calibration of Anisotropic Yield Surfaces Based on Kelvin Mode Decomposition
      Project thesis – completed 10/2013
      Author: T. Asmanoglo
    More details on open student thesis topics are provided here.


 Research


 Publications

 Theses

 2015
 2009
  • R. Ostwald
    Fatigue assessment of welded steel structures based on harmonic analyses,
    Diploma Thesis, Siemens AG, 2009

 Journals

 2017
  • R. Ostwald, T. Bartel, A. Menzel
    A finite strain continuum framework for the simulation of phase transformations based on representative transformation orientations,
    accepted for publication, 2017
 2016
 2015
 2014
 2013
  • T. Bartel, A. Bartels, U. Ehlenbröker, R. Mahnken, A. Menzel, J. Mosler, R. Ostwald, A. Schneidt, M. Wolff
    Modeling and Simulation of Solid Materials,
    In: Functionally Graded Materials in Industrial Mass Production – Fundamentals, ISBN 978-3-942267-92-2, pp. 113–128, 2013
 2012
 2011
 2010
 2009

 Proceedings

 2017
 2016
 2015
 2012
  • R. Ostwald, T. Bartel, A. Menzel
    A multi-scale model for the interaction of phase-transformations and plasticity in polycrystalline solids
    Proceedings of the 6th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS), 2012
 2011
 2010

 Talks

 2018
  • Towards the simulation of complex metal forming processes: combination of regularised damage and contact,
    Vierte Sitzung der Arbeitsgruppe Simulation des Arbeitskreises Bruchmechanik und Bauteilsicherheit des Deutschen Verbandes für Materialforschung und -prüfung e.V. (DVM), Institute of Forming Technology and Lightweight Components (IUL), TU Dortmund, 2018
  • A computational framework for the simulation of regularised damage,
    Materials Science and Engineering (MSE) Congress, Darmstadt University of Technology, 2018
  • Implementation of a gradient-enhanced damage model – a heat equation-based framework
    6th European Conference on Computational Mechanics (Solids, Structures and Coupled Problems) – ECCM 6, Glasgow, Scotland, UK, 2018
 2017
  • Modelling and Simulation of phase transformations in elasto-plastic polycrystals
    Invited Plenary Talk, 7th GACM Colloquium on Computational Mechanics, University of Stuttgart, 2017
  • A regularised damage formulation for the application in commercial finite element codes
    Invited Talk, Stanford University, E. Kuhl Seminar, Apr 2017
  • Modelling and computation of deformation-induced anisotropy in metal alloys
    Invited Talk, Stanford University, E. Kuhl Seminar, Feb 2017
 2016
  • Modellierung und Simulation anisotroper Festkörper
    Invited Talk, Rudolf Chaudoire Pavillon, TU Dortmund University, 2016
  • A thermodynamically consistent finite strain micro-sphere framework for phase-transformations
    7th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016), Crete Island, Greece, 2016
  • Extending a finite strain hyperelastic micro-sphere framework towards phase transformations
    Joint Annual Meeting of GAMM and DMV, TU Braunschweig, 2016
 2015
  • Modelling and Simulation of temperature-dependent phase-transformations in elasto-plastic SMA polycrystals
    3rd Spring School on Simulation-Based Microstructure Design (SiMiDe), Hamminkeln, 2015
  • A micro-mechanically motivated finite deformation thermo-elastoplastic framework for martensitic phase-transformations
    3rd ECCOMAS Young Investigators Conference / 6th German Association for Computational Mechanics Colloquium (YIC/GACM), Aachen, 2015
  • Modellierung und Simulation thermo-mechanisch induzierter Phasentransformationen in Stahlwerkstoffen
    SFB/Transregio 30 Abschlusskolloquium, Gießhaus, Universität Kassel, 2015
  • A framework for the simulation of phase-transforming elasto-plastic SMA and TRIP steel polycrystals
    3rd Polish Congress of Mechanics/21st International Conference on Computer Methods in Mechanics (PCM/CMM), Gdansk, Poland, 2015
 2014
  • A finite deformation framework for phase-transformations interacting with plasticity and its robust numerical solution
    IWCMM24 – XXIV International Workshop on Computational Micromechanics of Materials, IMDEA Materials Institute, Madrid, Spain, 2014
 2013
  • Simulation of temperature-dependent phase-transformations and plasticity in polycrystalline metals based on Gibbs energy barriers
    Invited Talk, University of Zaragoza, Spain, 2013
  • A micromechanically motivated material model for polycrystalline SMA
    International Workshop on New Trends in Solid Mechanics: Coupled Fields and Multi-scale Modelling, Castro Urdiales, Spain, 2013
  • Simulation of plasticity and martensitic phase-transformations based on representative transformation directions
    XII International Conference on Computational Plasticity (COMPLAS XII), Barcelona, Spain, 2013
  • Efficient Assessment of In-Process Phase-Transformations – Application to Machining Processes
    6. Forum Metallplastizität / 26. Workshop Composite Forschung in der Mechanik, Liborianum, Paderborn, 2013
 2012
  • Experimental and computational investigation of machining processes for functionally graded materials
    1st CIRP Conference on Surface Integrity (CSI), Bremen, 2012
  • Simulation of phase-transformations based on numerical minimization of intersecting Gibbs energy potentials
    83rd GAMM Annual Meeting, Darmstadt University of Technology, 2012
  • Modelling and Simulation of phase-transformations in polycrystalline materials with application to machining processes
    19. Sitzung der TRR30 AG Eigenschaftscharakterisierung, Institut für spanende Fertigung (ISF), TU Dortmund, 2012
  • A multi-scale model for the interaction of phase-transformations and plasticity in polycrystalline solids
    6th European Congress on Computational Methods in applied Sciences and Engineering (ECCOMAS Congress 2012), University of Vienna, Austria, 2012
  • Zerspanung von gradierten Flanschwellen
    2. Sitzung des Industriebeirates des SFB/Transregio 30, Lehrstuhl für Werkstofftechnik (LWT), TU Dortmund, 2012
  • Modelling and Simulation of Phase-Transformations and Plasticity in Steel
    1st International Conference on Thermo-Mechanically Graded Materials, Kongress Palais Kassel, 2012
 2011
  • A multi-phase micro-sphere-based model for phase-transformations interacting with plastic deformations
    10th GAMM-Seminar on Microstructures, Darmstadt University of Technology, 2011
  • Interaction of phase-transformations and plasticity – a multi-phase micro-sphere approach
    82nd GAMM Annual Meeting, Grazer Congress, Graz, Austria, 2011
  • Computational modelling of phase-transformations interacting with plasticity – combination of a Gibbs-energy-barrier-based transformation criterion with a plastic inheritance approach
    21st International Workshop on Computational Mechanics of Materials, University of Limerick, Ireland, 2011
  • Mikromechanisch motivierte Modellierung und Simulation der temperaturabhängigen Interaktionen zwischen Phasentransformationen und Plastizität
    5. Forum Metallplastizität / 24. Workshop Composite Forschung in der Mechanik, Liborianum, Paderborn, 2011
 2010
  • A micro-sphere approach applied to the modelling of phase-transformations
    81st GAMM Annual Meeting, KIT Karlsruhe Institute of Technology, Karlsruhe, 2010
  • Zur Modellierung und Simulation thermomechanisch induzierter Phasentransformationen in Stahlwerkstoffen
    1st TRR30 Workshop on Modeling and Simulation, TU Dortmund, 2010
  • A micro-sphere approach applied to the simulation of phase transformations interacting with plasticity
    23rd Nordic Seminar on Computational Mechanics (NSCM-23), KTH Royal Institute of Technology, Stockholm, 2010
 2009
  • Fatigue assessment of welded steel structures based on harmonic analyses
    Siemens AG, Mülheim/Ruhr, 2009
 2008
  • Modeling and simulation of electromagnetic forming processes: a combination of ANSYS and FEAP
    Institute of Mechanics, TU Dortmund, 2008
 2007
  • Development of finite element program modules for the simulation of electromagnetic forming
    Institute of Mechanics, TU Dortmund, 2007

 Poster

 2018
  • R. Ostwald, L. Sprave, R. Schulte, A. Menzel
    A gradient-enhanced damage implementation for the simulation of damage in metal forming processes,
    2nd Materials Chain International Conference (MCIC), Ruhr University Bochum, 2018
  • A. Schowtjak, T. Clausmeyer, R. Ostwald
    Modellintegration für die Prozesssimulation,
    SFB/Transregio 188 Industriekolloquium, Congress Center Westfalenhallen Dortmund, 2018
  • R. Ostwald, E. Kuhl, A. Menzel
    A computational framework for the simulation of regularised damage,
    Materials Science and Engineering (MSE) Congress, Darmstadt University of Technology, 2018
 2016
  • T. Clausmeyer, R. Ostwald
    Wissenschaftliches Serviceprojekt: Modellintegration für die Prozesssimulation – Zielsetzung,
    SFB/Transregio 188 Project Application, Institute of Forming Technology and Lightweight Components (IUL), TU Dortmund University, 2016
  • T. Clausmeyer, R. Ostwald
    Wissenschaftliches Serviceprojekt: Modellintegration für die Prozesssimulation – Arbeitsplan,
    SFB/Transregio 188 Project Application, Institute of Forming Technology and Lightweight Components (IUL), TU Dortmund University, 2016
  • T. Clausmeyer, R. Ostwald
    Wissenschaftliches Serviceprojekt: Modellintegration für die Prozesssimulation – Vorarbeiten,
    SFB/Transregio 188 Project Application, Institute of Forming Technology and Lightweight Components (IUL), TU Dortmund University, 2016
 2015
  • R. Ostwald, T. Bartel., A. Menzel
    Modelling and simulation of phase-transformations in elasto-plastic SMA and TRIP steel polycrystals,
    3rd Spring School on Simulation-Based Microstructure Design (SiMiDe), Akademie Klausenhof, Hamminkeln, 2015
  • R. Ostwald, T. Bartel, B. Kiefer, A. Menzel
    Modelling and Simulation,
    Materials Chain Kick-off meeting, Ruhr University Bochum, 2015
 2014
  • R. Ostwald, T. Bartel, A. Menzel
    Modellierung und Simulation thermo-mechanisch induzierter Phasentransformationen in Stahlwerkstoffen – Antragsposter,
    SFB/Transregio 30, 2nd Interim Evaluation, Paderborn University, 2014
  • R. Ostwald, T. Bartel, A. Menzel
    Modellierung und Simulation thermo-mechanisch induzierter Phasentransformationen in Stahlwerkstoffen – Berichtsposter,
    SFB/Transregio 30, 2nd Interim Evaluation, Paderborn University, 2014
 2012
  • R. Ostwald, T. Bartel, A. Menzel, M. Tiffe, D. Biermann, M. Lebsanft, B. Scholtes
    Modelling and simulation of the interactions between phase-transformations and plasticity in steel,
    11th GAMM-Seminar on Microstructures, Essen, SFB/Transregio 30 Cluster Poster – Research Projects A3/B6/D2, 2012
  • D. Biermann, A. Menzel, T. Bartel, F. Höhne, R. Holtermann, R. Ostwald, B. Sieben, M. Tiffe, A. Zabel
    Experimental and computational investigation of machining processes for functionally graded materials,
    1st CIRP Conference on Surface Integrity (CSI), Bremen, SFB/Transregio 30 Cooperation Poster – Research Projects A3/B6, 2012
 2010
  • R. Ostwald, T. Bartel, A. Menzel
    Modellierung und Simulation thermo-mechanisch induzierter Phasentransformationen in Stahlwerkstoffen (I),
    SFB/Transregio 30, 1st Interim Evaluation, Institute of Machining Technology (ISF), TU Dortmund, 2010
  • R. Ostwald, T. Bartel, A. Menzel
    Modellierung und Simulation thermo-mechanisch induzierter Phasentransformationen in Stahlwerkstoffen (II),
    SFB/Transregio 30, 1st Interim Evaluation, Institute of Machining Technology (ISF), TU Dortmund, 2010