Submicron volume roughness & asperity contact friction model for principle slip surface in flash heating process
Bojing Zhu , David A. Yuen , Yaolin Shi , Huihong Cheng
Journal of Earth Science ›› 2015, Vol. 26 ›› Issue (1) : 96 -107.
Submicron volume roughness & asperity contact friction model for principle slip surface in flash heating process
Based on focused ion beam and shear friction apparatus data, the multi-resolutions (0.2 nm-5 μm) volume roughness & asperity contact (VR & AC) three-dimensional structure on principle slip surface interface-surface (PSS-IS) is measured on high performance computational platform; and physical plastic-creep friction model is established by using hybrid hyper-singular integral equation & lattice Boltzmann & lattice Green function (BE-LB-LG). The correlation of rheological property and VR & AC evolution under transient (10 μs) macro-normal stress (18–300 MPa) and slip rate (0.25–7.5 m/s) are obtained; and the PSS-IS friction in co-seismic flash heating is quantitative analyzed for the first time.
VR & AC / BE-LB-LG / submicron-scale structure measurement / plastic-creep model / friction model
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