A Hybrid Multiscale Approach for Rubber Contact

Contact mechanics models based on linearity assumptions, often using the viscoelastic half space theory and numerically implemented with boundary element method, are known to provide accurate results for small mean square slope of surface roughness. For large slope, accounting finite deformations, non-linear more but lead a prohibitive computational cost. We propose new hybrid multiscale approach able account deformations arising due while keeping cost similar that associated linear approaches. The basic strategy is decomposition roughness power spectrum into discrete number waves, whose spectral range partitioned high low range. contact in former accurately solved kinematically model averaged out at larger wavelength scale terms an effective interface interaction law. This law then applied simulation involving scales within proposed alternative fully computationally faster