In this study,models are proposed to analyze the combined effect of surface microgeometry and adhesion on the load-distance dependence and energy dissipation in an approach-separation cycle,as well as on the formation...In this study,models are proposed to analyze the combined effect of surface microgeometry and adhesion on the load-distance dependence and energy dissipation in an approach-separation cycle,as well as on the formation and rupture of adhesive bridges during friction.The models are based on the Maugis-Dugdale approximation in normal and frictional (sliding and rolling) contacts of elastic bodies with regular surface relief.For the normal adhesive contact of surfaces with regular relief,an analytical solution,which takes into account the mutual effect of asperities,is presented.The contribution of adhesive hysteresis into the sliding and rolling friction forces is calculated for various values of nominal pressure,parameters of microgeometry,and adhesion.展开更多
基金This work was carried out under the financial support of the Russian Science Foundation (grant No.14-29-00198).The authors are also grateful for the discussion within the framework of the CARBTRIB International network supported by the Leverhulme Trust
文摘In this study,models are proposed to analyze the combined effect of surface microgeometry and adhesion on the load-distance dependence and energy dissipation in an approach-separation cycle,as well as on the formation and rupture of adhesive bridges during friction.The models are based on the Maugis-Dugdale approximation in normal and frictional (sliding and rolling) contacts of elastic bodies with regular surface relief.For the normal adhesive contact of surfaces with regular relief,an analytical solution,which takes into account the mutual effect of asperities,is presented.The contribution of adhesive hysteresis into the sliding and rolling friction forces is calculated for various values of nominal pressure,parameters of microgeometry,and adhesion.
