The contact of rough surfaces carrying pressure sensitive boundary layers

摘要: When two rough surfaces are loaded together it is well known that the area of true contact very much smaller then geometric and that, consequently, local pressures greater than nominal value. If asperities on each surface can be thought as possessing smooth summits solids elastically isotropic pressure distribution will consist a series small, but severe, Hertzian patches. However, if one both in question protected by boundary layer number dimensions these patches, form within them, modified. Recent experimental evidence from studies using Atomic Force Microscopy micro-tribometry suggests films produced action commercial anti-wear additives, such ZDTP, exhibit mechanical properties, which affected values pressure. These changes bring about further modifications to conditions. effects have been explored numerical model implications for mechanisms distress wear discussed.