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In this paper is shown methodology how to create a relatively small but at the same time accurate finite element model of the big models with shape difficulties. Dimensionality criterion is total number of degrees of freedom. Principle of simplification is similar to principle of macroelements. For solving was used program ANSYS, work was made with assistance of project of MSMT CEZ:J 17/98:2724019.
The paper considers stress and reliability analyses in the total endoprosthesis ceramic head, the production inaccuracies of the head-shank conical joint are considered. The fem program system ansys is used for computational modeling of stress in the system, weibull weakest link theory is used for determination of the ceramic head fracture probability. The stress results are different from the fracture...
The subject of this paper is obtaining the behaviour of the steel arc tunnel support on its dynamic loading. The problem is formulated by means of FEM with use explicity solve of motion equations. Mathematical model of our problem uses shell structural elements and includes contact nonlinearites. For solving is used sofware product LS-DYNA 3D.
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