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Realistic simulations joint replacement human joint
Franta, L. ; Pražák, Josef
Any artificial testing of joint replacement is considered as contribution significant to research in the field of joint replacements. The fundamental parameter, which influeces a length of survival, is an effective coefficient of friction, especially in low mutual speed of friction surfaces of joint replacements.
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Elastic waves in anisotropic plates
Hora, Petr ; Červená, Olga
Contributiondeals with description of general solution procedure of wave propagation inunbounded media, on the surface of a half-space and in an infinitely wideplate for anisotropic material. The algorithms of solution procedure for allof these cases are presented here.
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Large model simulations in molecular dynamics problems
Pelikán, Vladimír ; Hora, Petr ; Machová, Anna
Molecular dynamics simulation is a well-established techniquefor modelling complex many-particle systems in diverse areas of physics andchemistry. The computational requirements of simulations of large systems,especially when taking into account long-range interactions, are enormous.Two basic tasks in molecular dynamics simulation are surface relaxation andheating. Both of these tasks are studied in this contribution.
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Symetrický kontaktní algoritmus pro řešení dynamických rázových úloh
Gabriel, Dušan ; Plešek, Jiří
A three dimensional contact-impact algorithm based on the pre-discretization penalty method is presented. It is shown that the proposed method preserves a symmetric treatment of mutually contacting surfaces. The symmetry of the algorithm is tested by a dynamic contact problem when the impact of two cylinders as in the Taylor test is studied. Comparison of the proposed algorithm with the finite element code MARC is made.
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