PD Stefan Hartmann - Research Information System | University of Kassel - CONVERIS Research Information System

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PD Dr.-Ing. habil. Stefan Hartmann

Projects as Principal Investigator

11/2006 - 10/2009	Zeitadaptive Berechnung finiter thermoviskoplastischer Strukturen
09/2006 - 09/2008	Konsistente Raum-Zeitdiskretisierung thermomechanisch gekoppelter Strukturen mit Hilfe von Rosenbrock-Verfahren
01/2003 - 06/2006	p-Version der FEM für eine Klasse druckabhängiger Plastizitätsmodelle mit Anwendungen auf CIP-Prozesse
01/1999 - 12/2003	Identifikation von Materialeigenschaften an Elastomerwerkstoffen
01/1999 - 12/2006	Interpretation der Methode der finiten Elemente nichtlinearer Kontinua als numerische Lösung von Algebro-Differentialgleichungssystemen

Projects as Co-Investigator

2010 - 2012

ESNaS - Evalution der Standarts Natur.wi

Publications

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2003	Wensch, J., Podhaisky, H., Hartmann, S., 2003. Time integration of index 1 DAEs with Rosenbrock methods using Krylov subspace techniques. Proceedings in Applied Mathematics & Mechanics 3, 573–574.
2002	Hartmann, S., 2002. Comparative Studies of Solution Techniques in Non-Linear Finite-Element Computations, in: Mang, H.A., Rammerstorfer, F.G., Eberhardsteiner, J. (Hrsg.), Proceedings of the Fifth World Congress on Computational Mechanics (WCCM V). Vienna University of Technology, Austria, Vienna, S. 623.
2002	Hartmann, S., 2002. Computation in finite strain viscoelasticity: finite elements based on the interpretation as differential-algebraic equations. Computer Methods in Applied Mechanics and Engineering 191, 1429–1470. https://doi.org/10.1016/S0045-7825(01)00332-2
2001	Hartmann, S., 2001. Finite-element computation of large strain viscoelastic structures using diagonally implicit Runge-Kutta methods, in: IACM, E. (Hrsg.), 2nd European Conference on Computational Mechanics. Cracow.
2001	Hartmann, S., 2001. Numerical Studies on the Identification of the Material Parameters of Rivlin’s Hyperelasticity using Tension-Torsion Tests. Acta Mechanica 148, 129–155. https://doi.org/10.1007/BF01183674
2001	Hartmann, S., 2001. Parameter Estimation of Hyperelasticity Relations of Generalized Polynomial-Type with Constraint Conditionss. International Journal of Solids and Structures 38, 7999–8018. https://doi.org/10.1016/S0020-7683(01)00018-X
2001	Hartmann, S., Haupt, P., Tschoepe, T., 2001. Parameter identification with a direct search method using finite elements, in: D. Besdo, R.H.S. (Hrsg.), Constitutive Models for Rubber II. Balkema, Lisse, S. 249–256.
2001	Ellsiepen, P., Hartmann, S., 2001. Remarks on the Interpretation of Current Non-linear Finite Element Analyses as Differential-Algebraic Equations. International Journal for Numerical Methods in Engineering 51, 679–707. https://doi.org/10.1002/nme.179.abs
2000	Hartmann, S., 2000. A Time-Adaptive Finite-Element Procedur Applied to Creep and Relaxation Processes. ZAMM 80, 515–516.
2000	Diegele, E., Hartmann, S., Tsakmakis, C., 2000. Finite deformation plasticity and viscoplasticity laws exhibiting nonlinear hardening rules Part II: Representative examples. Computational Mechanics 25, 13–27. https://doi.org/10.1007/s004660050011