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Proc	I. Stankovic, M. Kröger, S. Hess Thermo-mechanical and structural properties of a low degree polynomial embedded atoms model metal Proc. 5th General Conf. of the Balkan Physical Union Vrnjacka Banja, Serbia and Montenegro (2003) 161-166
The low degree polynomial embedded atom model is adapted to study the thermo-mechanical behaviour and structure of model metals with non-equilibrium molecular dynamics simulations. The main constitutive properties, e.g. elastic coefficients, cohesive energy and lattice constant, of real metals can be reproduced by a set of basic model potentials as revealed by analytic considerations at zero temperature. The model is used to study systematically the behaviour of qualitatively similar, but quantitatively different systems under shear. The influence of elastic moduli and structure at finite temperature on shear stress is discussed. Further, in the case of mismatch between preferred local and the global embedding densities, formation of metallic sponges is observed. We analyze the time evolution of the sponges for different values of cohesive and surface energies.