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It is shown that the true reason of existing inconsistency at comparison of the
Hertz.Belyaev classical solutions of contact problems with the numerical solutions, obtained by
finite element method (FEM) for canonical-formed elastic bodies contact more often is not the
unsubstantially declared poor precision of the numerical method, but the substantial distortion of
the contact elements curvature, which causes accuracy of classical solutions. The criteria of
reliable accuracy evaluation of classical and numerical solutions of contact problems at
measuring the maximal shear stresses and the depth of its occurrence are given.
Keywords: depth of the maximal shear stress; elastic cylinders; contact mechanics; curvature; maximal contact stress; maximal shear stress. |
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