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Dr.-Ing. Thorsten Bartel

Dr.-Ing. Thorsten Bartel Foto von Dr.-Ing. Thorsten Bartel

Telefon
+49 231 755-2668

Fax
+49 231 755-2688

Sprechzeiten
on appointment

Adresse

Institute of Mechanics

Department of Mechanical Engineering

TU Dortmund

Leonhard-Euler-Straße 5

D-44227 Dortmund

Raum 126

Inhalt

Curriculum Vitae

02/2009 receipt of degree "Dr.-Ing." (summa cum laude) at the faculty of civil engineering, Ruhr-Universität Bochum. thesis:
"Multiskalenmodellierung martensitischer Phasentransformationen in Formgedächtnislegierungen unter Verwendung relaxierter Energiepotenziale"
since 08/2008 Senior researcher at the Institute of Mechanics, TU Dortmund
03/2003-07/2008 research assistant at the Institute of Mechanics, Ruhr-Universität Bochum.
02/2003 receipt of degree "Dipl.-Ing." at the faculty of civil engineering, Ruhr-Universität Bochum
1998-2003 Studies of civil engineering, Ruhr-Universität Bochum




Teaching

Courses

  • Introduction to Theory of Materials (SS 17, SS 18, SS19) - in English
  • Advanced Simulation Methods in Metal Forming I (SS 16) - in English
  • Parameter Identification (SS 16) - in englischer Sprache
  • Finite Element Methods I (WS 12/13 bis WS 15/16, WS 18/19) - in English
  • Finite Element Methods II (SS 13, SS 14, SS 15) - in English
  • Einführung in Numerische Methoden (WS 12/13)
  • Tensorrechnung (SS 10 bis SS 14)
  • Maschinendynamik (WS 15/16, WS 16/17, WS 17/18)
  • Mechanik I (WS 10/11, WS 19/20), formerly "Mechanik A"
  • Mechanik B (SS 11, SS 17)
  • Mechanik C (WS 11/12, WS 16/17, WS 18/19)
  • Mechanik D (SS 18)
  • Technische Mechanik BCI/Log/W'Ing (WS 08/09, WS 13/14,WS 14/15)
  • Höhere Festigkeitslehre (not offered anymore)

Short Courses / Seminars / Schools

  • "A micromagnetics-inspired framework for the simulation of multiferroic constitutive behaviour" - FOR 1509 winter school 2017, 21.02.2017
  • "On laminate-based homogenisation and its relation to energy relaxation" - Kolloquium für Mechanik (Einladung Prof. Dr.-Ing. Thomas Böhlke), Karlsruher Institut für Technologie (30.06.2016)
  • "Aspects of Energy Relaxation Methods for the Modelling of Solid-Solid Phase Transformations" - 1st Spring School Simulation-Based Microstructure Design of Materials (SiMiDe), Bochum
  • "Energy Relaxation and its Relation to Homogenisation Procedures in the Context of Solid-Solid Phase Transformations" - Summer School Collaborative Research Centre Transregio 30
  • "Mechanische Modellierung martensitischer Phasentransformationen mittels Energierelaxierung" - VDI-Seminar Universität Siegen (Einladung Prof. Dr.-Ing. Kerstin Weinberg), 16.11.2010
  • "Modeling of Microstructure Evolution in Solids" - COMMAS Summer School 2009 Universität Stuttgart (Einladung Prof. Dr.-Ing. Christian Miehe), 2009
  • "Multiskalenmodellierung martensitischer Phasentransformationen in Formgedachtnislegierungen unter Verwendung relaxierter Energiepotenziale" - Mathematik-Seminar TU Dortmund (Einladung Prof. Dr. Ben Schweizer), 23.04.2009

Supervision of project, bachelor and master theses

We offer plenty of topics for student's theses. Interested students may contact me via email or phone. Please note, that the attendance of advanced courses at our institute is advantageous and almost necessary for a successful execution.

An overview of the proposed topics can be found here.


Research

main topics

  • modelling and simulation of multiferroic constitutive response in, e.g., magnetic shape memory alloys
  • modelling of phase changes during additive manufacturing (e.g. selective laser melting)
  • modelling and simulation of functional fatigue in shape memory alloys
  • modelling and simulation of the thermomechanically coupled behaviour of shape memory alloys
  • micromechanical modelling of martensitic phase transformations
  • interactions of martensitic phase transformations and plasticity - shape memory alloys, TRIP-steels
  • material modelling of smart materials
  • energy relaxation methods
  • computational homogenization via Multiscale FEM (FE2)

reviewing for the following journals

  • Mechanics of Materials
  • Materials Science & Engineering A
  • International Journal of Engineering Science
  • European Journal of Mechanics - A/Solids
  • Journal of Intelligent Material Systems and Structures
  • International Journal of Mechanical Sciences
  • Journal of Manufacturing Processes
  • Journal of Manufacturing and Materials Processing
  • Materials & Design
  • International Journal of Mechanical Sciences
  • Technische Mechanik
  • SpringerPlus
  • International Journal of Structural Changes in Solids

further activities

  • elected member of the faculty council of the department of mechanical engineering (2014 until today)
  • elected member of the commission "Komission für Qualitätsverbesserungsmittel" (2016 until today)
  • elected deputy member of the following commissions and committees: "Kommission Studium und Lehre" (2016 until today), "Prüfungsausschuss Bachelor" (2016-2018), "Prüfungsausschuss Master" (2016-2018), and "Strukturkommission" (2016 until today)
  • organisation of the invited session "Constitutive modelling and advanced simulation techniques for the simulation of AM processes" at the ECCOMAS Thematic Congerence Sim-AM II, Pavia (Italy), September 11-13
  • guest editor for the "International Journal of Structural Changes in Solids", February 2011, Volume 3 No. 1
  • organisation of the minisymposium "Microstructural Interactions in Inelastic Solids" -- 81st GAMM annual meeting, Karlsruhe, 2010

Projects

Publications

Theses

2009
T. Bartel
Multiskalenmodellierung martensitischer Phasentransformationen in Formgedächtnislegierungen unter Verwendung relaxierter Energiepotenziale
Mitteilungen aus dem Institut für Mechanik Nr. 150, Ruhr-Universität Bochum, 2009

Journals

2020
T. Bartel, B. Kiefer, K. Buckmann, A. Menzel
An energy-relaxation-based framework for the modelling of magnetic shape memory alloys - Simulation of key response features under homogeneous loading conditions
Int. J. Sol. Struct., 182-183:162-178

2019
T. Bartel, I. Guschke, A. Menzel
Towards the simulation of Selective Laser Metling processes via phase transformation models
Comput. Math. Appl., 78(1):2267-2281 (published online in 2018)

K. Buckmann, B. Kiefer, T. Bartel, A. Menzel
Simulation of magnetised microstructure evolution based on a micromagnetics-inspired FE framework: application to magnetic shape memory behaviour
Arch. Appl. Mech., 89:1085-1102 (published online 31.10.2018)

T. Bartel, R. Schulte, A. Menzel, B. Kiefer, B. Svendsen
Investigations on enhanced Fischer-Burmeister NCP functions: application to a rate-dependent model for ferroelectrics
Arch. Appl. Mech., 89:995-1010 (published online 18.09.2018)

2017
T. Bartel, M. Osman, A. Menzel
A phenomenological model for the simulation of functional fatigue in shape memory alloy wires
Meccanica, 52(4-5):973-988 (published online 28.03.2016)

2016
T. Bartel, A. Menzel
Modelling and simulation of cyclic thermomechanical behaviour of NiTi wires using a weak discontinuity approach
Int. J. Fracture, 202(2):281-293

2015
T. Bartel, B. Kiefer, K. Buckmann and A. Menzel
A kinematically-enhanced relaxation scheme for the modeling of displacive phase transformations
J. Intel. Mat. Sys. Struct., 26(6):701-717

B. Kiefer, K. Buckmann, T. Bartel
Numerical Energy Relaxation to Model Microstructure Evolution in Functional Magnetic Materials
GAMM-Mitteilungen, 38(1):171-196

R. Ostwald, T. Bartel, A. Menzel
An energy-barrier-based computational micro-sphere model for phase-transformations interacting with plasticity
Comput. Methods Appl. Mech. Engrg., 293:232-265 (DOI: 10.1016/j.cma.2015.04.008)

A. Bartels, T. Bartel, M. Canadija, J. Mosler
On the thermomechanical coupling in dissipative materials: a variational approach for generalized standard materials
Journal of the Mechanics and Physics of Solids 82: 218-234

2014
R. Ostwald, T. Bartel, A. Menzel
A Gibbs-energy-barrier-based computational micro-sphere model for the simulation of martensitic phase-transformations
Int. J. Numer. Meth. Engng. 97:851-877

R. Ostwald, M. Tiffe, T. Bartel, A. Zabel, A. Menzel, D. Biermann
Towards the multi-scale simulation of martensitic phase-transformations: an efficient post-processing approach applied to turning processes
Journal of Materials Processing Technology, 214(8):1516-1523

2012
T. Bartel, A. Menzel
Partially relaxed energy potentials for the modelling of microstructures - application to shape memory alloys
GAMM-Mitteilungen 35:57-72

R. Ostwald, T. Bartel, A. Menzel
Phase-transformations interacting with plasticity – a micro-sphere model applied to TRIP steel
Computational Materials Science 64:12-16

B. Kiefer, T. Bartel, A. Menzel
Implementation of Numerical Integration Schemes for the Simulation of Magnetic SMA Constitutive Response
Smart Materials and Structures 21, 094007

2011

T. Bartel, A. Menzel, B. Svendsen
Thermodynamic and relaxation-based modeling of the interaction between martensitic phase transformations and plasticity
J. Mech. Phys. Solids 59(5):1004-1019

R. Ostwald, T. Bartel, A. Menzel
A one-dimensional computational model for the interaction of phase-transformations and plasticity
Int. J. of Structural Changes in Solids, 3(1):63-82

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
Procedia Engineering, 19:22-27

2010

T. Bartel, K. Hackl
Multiscale modeling of martensitic phase transformations: On the numerical determination of heterogeneous mesostructures within shape-memory alloys induced by precipitates
Technische Mechanik, 30(4)

R. Ostwald, T. Bartel, A. Menzel
A computational micro-sphere model applied to the simulation of phase-transformations
J. Appl. Math. Mech., 90(7-8):605-622

2009

T. Bartel, K. Hackl
A micromechanical model for martensitic phase-transformations in shape-memory alloys based on energy-relaxation
Z. Angew. Math. Mech., 89 (10)

2008

T. Bartel, K. Hackl
A novel approach to the modelling of single-crystalline materials undergoing martensitic phase-transformations
Mat. Sci. Engrg. A, 481-482


Talks

2019

Thermomechanically coupled finite-element-based modelling and simulation of phase transitions during selective laser melting processes
ECCOMAS Thematic Congerence Sim-AM II, Pavia (Italy), September 11-13

On the modelling and simulation of phase-transforming magnetic solids using energy relaxation and FEM
6th ICMM, Lund (Sweden), June 26-28

A finite-element framework for the modelling and simulation of phase-transforming magnetic solids using energy relaxation concepts
90th GAMM Annual Meeting, Vienna (Austria), February 18-22

On the derivation of relaxed energy densities using perturbations of curl- and div-free fields
18th GAMM Seminar on Microstructures, Berlin, January 18-19

2018

A magnetomechanically coupled FE-framework based on energy-minimising microstructure evolution
2nd Materials Chain International Conference, Bochum, November 12-14,

One the modelling and simulation of selective laser melting using a phase transformation approach
10th European Solid Mechanics Conference, Bologna (Italy), July 2-6,

Derivation of energy bounds via perturbations of curl- and div-free fields: application to magnetizable solids
3rd Seminar on the Mechanics of Multifunctional Materials, Bad Honnef, June 11-15,

Energy relaxation schemes for magnetizable solids using perturbations of divergence- and curl-free fields
17th GAMM Seminar on Microstructures, Firenze (Italy), January 25-26,

2017

Towards a micromagnetics-inspired framework for the modelling of variant switching in magnetic shape memory alloys
88th GAMM Annual Meeting, Ilmenau/Weimar, March 6-10

A thermomechanically coupled model for the modelling and simulation of the cyclic behaviour of NiTi shape memory alloy wires
5th International Conference on Material Modeling, Rome (Italy), June 14-16

A Finite-Element-based macroscopic framework for the modelling of variant switching in MSMA
3rd Seminar on Ferroic Functional Materials, Kassel, October 4-6

Towards the modelling and simulation of additive manufacturing via phase transformation models
ECCOMAS Thematic Congerence Sim-AM, Munich, October 11-13

2016

A phenomenological framework for the modelling of functional fatigue in NiTi wires
87th GAMM Annual Meeting Braunschweig, March 7-11

A variational framework for the modelling of variant switching and reorientation in MSMA using energy relaxation methods
40th Solid Mechanics Conference, Warsaw (Poland), October 29-September 2

Modelling and simulation of moving interfaces in solids undergoing martensitic phase transformations
15th European Mechanics of Materials Conference, Brussels (Belgium), September 7-9

2015
A novel contribution to the relaxation of non-convex energy density functionals
86th GAMM Annual Meeting Lecce (Italy), March 23-27

Phase transformations interacting with plasticity - Constitutive modelling and numerical simulations
7th International Symposium on Defect and Material Mechanics (ISDMM) Bremen, September 14-17


Application of quasiconvex analysis: Enhanced micromechanical modelling of martensitic phase transformations and numerical implementation
21st International Conference on Computer Methods in Mechanics (CMM) Gdańsk (Poland), September 8-11

2014

A micromechanical model for continuous twin formation during martensitic phase transformations
85th GAMM Annual Meeting Erlangen, March 10-14

On the continuous modeling and simulation of twin formation during martensitic phase transitions
13th GAMM seminar on microstructures Bochum, February 17-18

2013

A phase-transformation-plasticity model for polycrystalline materials based on representative crystal orientations
12th GAMM seminar on microstructures Berlin, February 8-9

2012

A thermodynamically consistent framework for martensitic phase transformations interacting with plasticity
83rd GAMM annual meeting, Darmstadt

A polycrystalline framework for martensitic phase transformations interacting with plasticity
3rd International Symposium Computational Mechanics of Polycrystals, Bad Honnef

A Large-Strain Model for Phase-Transformation-Plasticity- Interactions in Steels
8th European Solid Mechanics Conference, Graz (Austria)

2011

A thermodynamically consistent model for materials undergoing martensitic phase transformations
82nd GAMM annual meeting, Graz (Austria)

A material model for polycristalline materials undergoing martensitic phase transformations coupled with plasticity
2nd International Conference on Material Modeling (ICMM), Paris (France)

2010

Relaxation-based modeling of the interaction between martensitic phase transformations and plasticity
81st GAMM annual meeting, Karlsruhe

Relaxation-based modeling of the interaction between martensitic phase transformations and plasticity
9th GAMM seminar on microstructures, Stuttgart

On the modeling of the interaction between martensitic phase transformations and plasticity via energy relaxation
IV European Conference on Computational Mechanics (ECCM), Paris (France)

Mikromechanische Modeliierung der Interaktion zwischen martensitischen Phasentransformationen und PLastizität
AK Stoffgesetze/Forum Metallplastizität, Berlin

2009

Enhanced micromechanical modeling of martensitic phase-transitions in shape-memory alloys
1st Sino-German Workshop on Advanced and Multiscale Material Modeling, Dortmund

Enhanced micromechanical modeling of martensitic phase-transitions considering plastic deformations
8th ESOMAT, Prague (Czech Republic)

On the modeling of materials undergoing martensitic phase transformations in combination with plastic deformations
4th ISDMM, Trento (Italy)

Multiscale modeling of martensitic phase transformations in shape memory alloys
3rd GAMM Workshop on Multiscale Material Modeling, Karlsruhe, Germany

On heterogeneous mesostructures induced by precipitates embedded in a shape-memory-alloy matrix
80th GAMM Annual Meeting, Gdańsk (oland)

On relaxation methods for solid-solid phase transitions: Micromechanical modeling, FE-application and discussion
9th GAMM Seminar on Microstructures, Regensburg