Computational simulation of different parameters influencing the contact stress distribution [Elektronski vir]
Fajdiga, Gorazd ; Flašker, Jože
The study is aimed to determine particular positions in the contacting bodies, where the likelihood of irrecoverable damage is the highest due to large stresses resulting from different contact ...conditions. A two-dimensional equivalent contact model is used for all computational analyses utilising the finite element method. The stress field in the contact area can then be more easily determined by applying the standard Hertz contact theory, along with general-purpose finite element codes. The distribution of the maximum equivalent von Mises stress under the contacting area is first determined for pure Hertzian contact conditions, where the maximum stresses appear at a certain depth under the contacting surface. Then a parametric study to determine the influence of loading, contact surface curvature, contact friction, residual stresses and elasto-hydro-dynamic lubrication on the stress distribution is performed.
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