Optimized methodology for the wear simulation of metallic materials
DOI:
https://doi.org/10.3989/revmetalmadrid.11XIIPMSKeywords:
Wear, Finite element, Variable speed factor, Metallic materials, Optimized methodologyAbstract
The wear simulation with finite element method (FEM) presents great advantages for the improvement of components, because of the reduction in the cost in comparison to the experimental procedure (test time, materials, tribological measurements). In the case of wire rope optimization, where one of the great problems is wear due to fretting in cylinder-cylinder contact points, this method could be efficient. Nevertheless, the wear simulation results in a complex methodology: on the one hand is needed to solve the contact problem and on the other hand the introduction of the wear model. For this reason, this methodology results in high computational time consuming. Consequently an efficient methodology for the optimization of the model, in terms of the reduction of computational time, is presented in this work for a block-on-ring system. Finally a variable wear speed factor and auto-fitting with respect to the evolution of maximum contact pressure and with respect to the maximum limit wear increment is introduced. This is necessary, in systems where high amount of wear is presented with a reduction of 87 % in computational time and an error of less than 1 %.
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