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Jun. Prof. Björn Kiefer, Ph.D.

Jun. Prof. Björn Kiefer, Ph.D.

Inhalt

Research

Research Interests

  • Continuum Mechanics with Geometrical and Physical Nonlinearities
  • Constitutive Modeling of Active and Multifunctional Materials
  • Electro-Magneto-Mechanical Coupling Phenomena in Solids
  • Computational Mechanics of Coupled Problems
  • Micromechanics and Multi-Scale Modeling
  • Coupling of Phase Transformations, Plastiticy and Damage

Professional Activities

  • Reviewer: Acta Mater., Adv. Eng. Mater., Adv. Model. Simul. Eng. Sci., Contin. Mech. Thermodyn., Eur. J. Mech. A Solids, GAMM-Mitteilungen, J. Alloys Compd., JIMSS, JMMM, JMPS, J. Supercond. Novel Magn., Materials, Mater. Des., Mater. Sci. Eng. A, Math. Probl. Eng., Mecchanica, Mech. Mater, Philos. Mag., PAMM, Smart Mater. Struct.
  • Elected Member, Technical Committee Adaptive Systems Dynamics and Controls, American Society of Mechanical Engineers (ASME) – Aerospace Division, Adaptive Structures and Material Systems Branch, since 11/2011
  • Elected Member of the Adaptive Structures and Material Systems Branch (formerly Technical Committee), American Society of Mechanical Engineers (ASME) – Aerospace Division, since 09/2011

Conference Organization

  • Chair (co-chair U. Marschner, TU Dresden) of Symposium 3: Modeling, Dynamics, and Control of Adaptive Systems, ASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Colorado Springs, CO, USA, 21-23 September, 2015
  • Co-chair (chair H. Feigenbaum, Northern Arizona University, USA) Best Student Paper Competition, ASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Colorado Springs, CO, USA, 21-23 September, 2015
  • Co-organizer (with M.-A. Keip, University of Stuttgart, J. Schröder, University of Duisburg-Essen, and B. Svendsen, RWTH Aachen) of the minisymposium: Multi-scale Modeling of Ferroic Functional Materials, 86. GAMM Annual Meeting, Lecce, Italy, 23-27 March, 2015
  • Chair Best Student Paper Competition, ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Newport, RI, USA, 15-17 September, 2014
  • Co-chair Symposium 3: "Modeling, Dynamics, and Control of Adaptive Systems", ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Newport, RI, USA, 15.-17. September 2014 (chair J.-H. Koo, Miami University, USA, co-chair U. Marschner, TU Dresden)
  • Chair Best Student Paper Competition, ASME 2013 Conference on Smart Materials, Adaptive Structures and Intelligent Systems (SMASIS), Salt Lake City, NV, USA, 19-21 September, 2013 (with co-chair H. Feigenbaum, Northern Arizona University, USA)
  • Co-Chair Symposium 3, "Modeling, Dynamics, and Control of Adaptive Systems", ASME 2013 Conference on Smart Materials, Adaptive Structures and Intelligent Systems (SMASIS), Snowbird, NV, USA, 19-21 September, 2013 (with chair E. Dragoni, Università degli studi di Modena e Reggio Emilia, Italy, co-chair J.-H. Koo, Miami University, USA)
  • Symposium: "Anreizsysteme - Eine Möglichkeit zur Verbesserung der Lehre?" (Incentive Programs: An Effective Measure to Improve the Quality of Teaching?), Beckmanns Hof - International Convention Centre Ruhr Universität Bochum, 4 December, 2012 (with GYF-AG Lehren und Lernen im Hochschulraum Ruhr)
  • Minisymposium “Computational Modeling of Electromagnetic Functional Materials”, 4. GACM Colloquium on Computational Mechanics, Dresden, Germany, 31. August-2. September, 2011 (with D. Rosato, Universität Stuttgart, Germany)
  • Section 8: “Multiscales and Homogenization” of the GAMM Annual Meeting 2009, Gdansk, Poland, 9-13 February, 2009 (with S. Stupkiewicz, Institute of Fundamental Technological Research (IPPT), Warsaw, Poland)
  • 2. GAMM-Seminar on Multiscale Material Modeling, Universität Stuttgart, 11.-12. July, 2008  (with C. Miehe, Universität Stuttgart, Germany)

(Co)-Supervised Theses and Student Projects



Talks


Complete List of Presentations (2003-2015)
(Conferences, Invited Lectures)


Projects

  • DFG-Ki 1392/4-1, 4-2 (with T. Bartel): Project P7: Numerische Relaxierung zur Beschreibung der Mikrostrukturentwicklung in funktionalen magnetischen Werkstoffen (Numerical Relaxation for the Description of Microstructure Evolution in Functional Magnetic Materials), DFG-Forschergruppe (Research Unit) 1509: Ferroische Funktionsmaterialien – Mehrskalige Modellierung und experimentelle Charakterisierung (Functional Materials at Multiple Scales – Continuum Modeling and Experimental Characterization), 01/2012, 08/2015
  • MERCUR An-2012-0025: Modellierung und numerische Simulation nichtlokaler anisotroper Schädigungseffekte bei großen inelastischen Verformungen (Modeling and Numerical Simulation of Non-local Anisotropic Damage Effects at Large Inelastic Deformations), funded by the Mercator Research Center Ruhr (MERCUR), 04/2014
  • MERCUR Pr-2014-0021: Modellierung und experimentelle Untersuchung der multiferroischen Kühleigenschaften von (ferromagnetischen) Formgedächtnislegierungen (Modeling and Experimental Investigation of the Multiferroic Cooling Properties of (Ferromagnetic) Shape Memory Alloys), funded by the Mercator Research Center Ruhr (MERCUR) (with  J. Frenzel, Ruhr-Universität Bochum), 07/2014.

Publications



Theses


2006

B. Kiefer
A Phenomenological Constitutive Model for Magnetic Shape Memory Alloys
Doctoral Dissertation, Texas A&M University, Department of Aerospace Engineering, 2006


Journals


2017

B. Kiefer, T. Waffenschmidt, L. Sprave and A. Menzel
A gradient-enhanced damage model coupled to plasticity—multi-surface formulation and algorithmic concepts
International Journal of Damage Mechanics, International Journal of Damage Mechanics,
doi:10.1177/1056789516676306, 2017

B. Kiefer, T. Furlan and J. Mosler
A Numerical Convergence Study Regarding Homogenization Assumptions in Phase Field Modeling International Journal for Numerical Methods in Engineering.
2017

2016

K. Haldar, B. Kiefer and A. Menzel
Finite element simulation of rate-dependent magneto-active polymer response
Smart Materials and Structures, accepted for publication,
25, 10, 104003, 2016

2015

T. Bartel, B. Kiefer, K. Buckmann and A. Menzel
A kinematically-enhanced relaxation scheme for the modeling of displacive phase transformations
Journal of Intelligent Material Systems and Structures,
26, 6, 701-717, 2015

E. Peraza Hernandez, B. Kiefer, D. Hartl, A. Menzel and D. Lagoudas
Analytical investigation of structurally stable configurations in shape memory alloy-actuated plates
International Journal of Solids and Structures,
69-70, 442-458, 2015

B. Kiefer, K. Buckmann and T. Bartel
Numerical energy relaxation to model microstructure evolution in functional magnetic materials
GAMM-Mitteilungen,
38, 1, 171-196, 2015

J. Schröder, M. Labusch, M. Keip, B. Kiefer, D. Brands and D. Lupascu
Computation of non-linear magneto-electric product properties of 0-3 composites
GAMM-Mitteilungen,
38, 1, 8-24, 2015

B. Potdar, S. Graff and B. Kiefer
Numerical Analysis and Experimental Validation of the Thermo-Mechanical Flow Behaviour of the Hot Stamping Steel MBW® 1500
Key Engineering Materials,
639, 213-220, 2015

2013

C. Jarali, S. Basavaraddi, B. Kiefer, S. Pilli and Y. Charles Lu
Modeling of the Effective Elastic Properties of Multifunctional Carbon Nanocomposites Due to Agglomeration of Straight Circular Carbon Nanotubes in a Polymer Matrix
Journal of Applied Mechanics,
81, 2, 021010, 2013

2012

B. Kiefer, T. Bartel and A. Menzel
Implementation of numerical integration schemes for the simulation of magnetic SMA constitutive response
Smart Materials and Structures,
21, 9, 094007, 2012

2011

C. Miehe, D. Rosato and B. Kiefer
Variational principles in dissipative electro-magneto-mechanics: A framework for the macro-modeling of functional materials
International Journal for Numerical Methods in Engineering,
86, 10, 1225-1276, 2011

C. Jarali, S. Raja and B. Kiefer
Modeling the effective properties and thermomechanical behavior of SMA-SMP multifunctional composite laminates
Polymer Composites,
32, 6, 910-927, 2011

C. Miehe, B. Kiefer and D. Rosato
An incremental variational formulation of dissipative magnetostriction at the macroscopic continuum level
International Journal of Solids and Structures,
48, 13, 1846-1866, 2011

2008

B. Kiefer and D. Lagoudas
Modeling the Coupled Strain and Magnetization Response of Magnetic Shape Memory Alloys under Magnetomechanical Loading
Journal of Intelligent Material Systems and Structures,
20, 2, 143-170, 2008

B. Kiefer and D. Lagoudas
Modeling of the variant reorientation in magnetic shape-memory alloys under complex magnetomechanical loading
Materials Science and Engineering: A,
481-482, 339-342, 2008

2007

B. Kiefer, H. Karaca, D. Lagoudas and I. Karaman
Characterization and modeling of the magnetic field-induced strain and work output in Ni2MnGa magnetic shape memory alloys
Journal of Magnetism and Magnetic Materials,
312, 1, 164-175, 2007

2005

B. Kiefer and D. Lagoudas
Magnetic field-induced martensitic variant reorientation in magnetic shape memory alloys
Philosophical Magazine,
85, 33-35, 4289-4329, 2005


Proceedings


2016

L. Sprave, B. Kiefer and A. Menzel
Computational aspects of transient diffusion-driven swelling
Proceedings of 29th Nordic Seminar on Computational Mechanics– NSCM29, 2016

B. Kiefer, T. Waffenschmidt, L. Sprave and A. Menzel
A Comparison of Algorithmic Approaches to Damage-Plasticity Modeling in the Context of Gradient-Enhancement
PAMM,
16, 1, 147-148, 2016

K. Buckmann, B. Kiefer, T. Bartel and A. Menzel
Towards the Embedding of Relaxation-based Magnetostriction Models into a Micromagnetically-Motivated Finite Element Framework
PAMM,
16, 1, 433-434, 2016

2015

B. Potdar, S. Graff and B. Kiefer
Numerical Analysis and Experimental Validation of the Thermo-Mechanical Flow Behaviour of the Hot Stamping Steel MBW® 1500
Key Engineering Materials, 639, 213-220, 2015

K. Buckmann, B. Kiefer, T. Bartel and A. Menzel
Rank-One Convexification Approach for the Modeling of Magnetic Shape Memory Response
PAMM,
15, 1, 311-312, 2015

B. Kiefer, K. Haldar and A. Menzel
Modeling, Simulation and Parameter Identification for Rate-Dependent Magnetoactive Polymer Response.
PAMM,
15, 1, 395-396, 2015

2014

B. Kiefer, K. Buckmann, T. Bartel and A. Menzel
Modeling of Single Crystal Magnetostriction Based on Numerical Energy Relaxation Techniques
Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Structural Health Monitoring; Keynote Presentation,
V001T03A007, 2014

K. Haldar, B. Kiefer and A. Menzel
Modeling and Simulation of Rate-Dependent Magneto-Active Polymers
PAMM,
14, 1, 401-402, 2014

K. Buckmann, B. Kiefer, T. Bartel and A. Menzel
Modeling of Single Crystal Magnetostriction Based on Numerical Energy Relaxation Techniques
PAMM,
14, 1, 399-400, 2014

M. Labusch, M. Keip, B. Kiefer and J. Schröder
Computation of effective non-linear inelastic properties of magnetostrictive composites
PAMM,
14, 1, 559-560, 2014

D. Dusthakar, T. Bartel, B. Kiefer, A. Menzel and B. Svendsen
Rate-Dependent Laminate-Based Approach for Modelling of Ferroelectric Single Crystals
Proceedings of the 5th International Congress on Computational Mechanics and Simulation,
1324-1336, 2014

M. Labusch, M. Keip, B. Kiefer and J. Schröder
Computation of the Effective Magnetostrictive Coeffcient of Magneto-Mechanically Coupled Composites
Proceedings of 11th World Congress on Computational Mechanics (WCCM XI), 2014

K. Haldar, B. Kiefer and A. Menzel
Constitutive Modeling of Magneto-Viscous Polymers
Proceedings (extended abstract) of the 14th Pan-American Congress of Applied Mechanics (PACAM XIV), 2014

B. Potdar, S. Graff, B. Kiefer and M. Merklein
Numerical Analysis and Experimental Validation of the Flow Behaviour of Manganese-Boron Steel at Elevated Temperatures
Proceedings of the Forming Technology Forum 2014, 2014

K. Buckmann, B. Kiefer, T. Bartel and A. Menzel
Modeling of Single Crystal Magnetostriction Based on Numerical Energy Relaxation Techniques
Proceedings of the Second Seminar on the Mechanics of Multifunctional Materials, 2014

2013

T. Bartel, K. Buckmann, B. Kiefer and A. Menzel
An Advanced Energy Relaxation Scheme for the Modeling of Displacive Phase Transformations
Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation,
V001T03A013, 2013

D. Hartl, B. Kiefer and A. Menzel
Modeling Shape Memory Alloy Single Crystalline Responses Using an Anisotropic Yield Surface
L. Breese P. Warren, eds.; TMS 2013 Conference Proceedings, TMS2013 Supplemental Proceedings,
975-986, 2013

D. LaMaster, H. Feigenbaum, B. Kiefer and C. Ciocanel
Thermodynamics-Based Model for Magnetic Shape Memory Alloys
Proceedings (extended abstract) of the 4th International Conference on Ferromagnetic Shape Memory Alloys (ICFSMA), 2013

2009

B. Kiefer, D. Rosato and C. Miehe
Geometrical Aspects of the Incorporation of Free Space in Magnetomechanics at Finite Strains
PAMM,
9, 1, 389-390, 2009

D. Lagoudas, B. Kiefer and K. Haldar
Magnetic field-induced reversible phase transformation in magnetic shape memory alloys
Proceedings of SPIE: Behavior and Mechanics of Multifunctional Materials and Composites, Behavior and Mechanics of Multifunctional Materials and Composites 2009,
7289, 72891O-72891O-11, 2009

2008

B. Kiefer, D. Rosato and C. Miehe
Finite Element Analysis of General Magnetomechanical Coupling Phenomena
PAMM,
8, 1, 10505-10506, 2008

D. Lagoudas, B. Kiefer and K. Haldar
Magneto-Mechanical Finite Element Analysis of Magnetic Shape Memory Alloys With Body Force and Body Couple
Proceedings of ASME, Conference on Smart Materials, Adaptive Structures and Intelligent Systems 2008, SMASIS08-533, Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1,
481-490, 2008

B. Kiefer, D. Rosato and C. Miehe
Modeling and computational analysis of materials exhibiting intrinsic magnetomechanical coupling
Proceedings of SPIE: Behavior and Mechanics of Multifunctional and Composite Materials, Behavior and Mechanics of Multifunctional and Composite Materials 2008,
6929, 692920-692920-12, 2008

2007

B. Kiefer, D. Rosato and C. Miehe
On the modeling of thermo-electro-magneto-mechanical solids at finite strains
PAMM,
7, 1, 4070025-4070026, 2007

D. Lagoudas, B. Kiefer and A. Broederdorf
Constitutive Modeling of Magnetic Shape Memory Alloys with Magneto-Mechanical Coupling
Proceedings of the 6th International Symposium on Advanced Composites (COMP07), COMP07-033, 1-8, 2007

2006

D. Lagoudas, B. Kiefer and A. Broederdorf
Accurate Interpretation of Magnetic Shape Memory Alloy Experiments Utilizing Coupled Magnetostatic Analysis
Proceedings of ASME, International Mechanical Engineering Congress and Exposition 2006, IMECE2006-15296, Aerospace,
2006, 311-321, 2006

B. Kiefer and D. Lagoudas
Modeling of the Stress- and Magnetic Field-Induced Variant Reorientation in MSMAs
Proceedings of AIAA 47th AIAA Structures, Structural Dynamics, and Materials Conference, 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
14th AIAA/ASME/AHS Adaptive Structures Conference
7th,
1766, 1-15, 2006

B. Kiefer and D. Lagoudas
Application of a magnetic SMA constitutive model in the analysis of magnetomechanical boundary value problems
Proceedings of SPIE: Smart Structures and Materials, Smart Structures and Materials 2006: Active Materials: Behavior and Mechanics,
6170, 330-341, 2006

2005

B. Kiefer and D. Lagoudas
Modeling of the magnetic field-induced martensitic variant reorientation and the associated magnetic shape memory effect in MSMAs
Proceedings of SPIE: Smart Structures and Materials, Smart Structures and Materials 2005: Active Materials: Behavior and Mechanics,
5761, 454-465, 2005

2004

B. Kiefer and D. Lagoudas
Phenomenological modeling of ferromagnetic shape memory alloys
Proceedings of SPIE, Smart Structures and Materials, Smart Structures and Materials 2004: Active Materials: Behavior and Mechanics,
5387, 164-176, 2004