GAMM Rundbrief 2002/Heft 2
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GAMM Rundbrief 2002/Heft 2

GAMM Rundbrief 2002/Heft 2 GAMM Rundbrief 2002/Heft 2

gamm.ev.de
11.08.2013 Views

60 Wissenschaftliche Tagungen

Wissenschaftliche Tagungen 61 The course is addressed to PhD Students, post-doctoral researchers and research engineers interested in broadening their knowledge in the interdisciplinary field of materials science and continuum mechanics. Especially the problems related with changing microstructures are of high theoretical and practical relevance. Invited Lectures: M. Berweiller - LPMM - ENSAM, Metz, France 6 lectures on: Micromechanics of displacive (martensitic) transformation in heterogeneous and non-linear solids. Martensitic transformation in SMA’s and TRIP steels. Experimental results for SMA and TRIP materials. Modelling the Superelastic Behaviour of SMA’s and composites. Micromechanics of the TRIP phenomenon: transformation induced plasticity, strain induced transformation, thermomechanical couplings. F.D. Fischer - Montanuniversität, Leoben, Austria 6 lectures on: Transformation- and twinning condition for a microregion (TTC). Energy balance and dissipation conditions for a microregion, interaction with the local stress state. Chemical energy in the case of displacive, massive and diffusive transformations. Implementation of the TTC in a finite element model. Applications. P. Fratzl - E. Schmid Institute of Materials Sciences, Leoben, Austria 6 lectures on: Modelling the microstructure evolution during phase transformation and phase separation by phase field models and atomistic simulations. Dynamic and extended Ising model, Phase field model, Cahn Hilliard equation. Stability, spinodal decomposition. Kinetics of homogeneous precipitation and interface motion. Effects of misfit strains and anisotropy. Influence of vacancy-solute interactions, simulation of precipitate rafting. Extensions of the phase field model: diffusion less transformations, dislocations and phase separation, dislocation movement. R. Kienzler - University of Bremen, Germany 6 lectures on: Configurational Mechanics of Materials. Eshelbian and Newtonian forces. Change of the configuration related with the location of a dislocation, size or shape of a cavity, inclusion, crack, phase boundary etc. Application to defects and fracture mechanics. F. Montheillet - ENSMSE Saint Etienne, France 6 lectures on: Various recrystallization mechanisms in metals, sub-grain and grain boundary migration and dynamics. Continuous and discontinuous dynamic recrystallization. Nucleation of new grains, generation of low angle sub grain boundaries. Influence of material purity, strain rate, temperature on the possible transition between the mechanisms. Mechanisms for grain growth. Modelling of recrystallization. J. Svoboda - Institute of Physics of Materials, Brno, Czech Republic 6 lectures on: Phenomenological description of processes based on non-equilibrium linear thermodynamics and extremal principle. Diffusion and vacancies in multicomponent systems. Modelling of diffusive phase transformations. Solute segregation and drag in migrating interfaces. Evolution of precipitate structures. CISM Palazzo del Torso - Piazza Garibaldi 18 33100 Udine (Italy) tel.. +39 0432 248511 (6 lines) fax: +39 0432 248550 mail: cism@cism.it web : http://www.cism.it

60 Wissenschaftliche Tagungen

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