Abstract
Current study investigates stress-dependent fatigue wear mechanism of pure copper surfaces in ambient environment. The stressed copper surface by a unique bending fixture is subjected to sliding motion of the atomic force microscope probe. Wear volumes are determined at different contact loads with variable bending stresses. Experimental results indicate that the surface damage is accelerated under compressive stresses and suppressed under tensile stresses with the similar contact pressures. A numerical model of fatigue stress intensity factor at the subsurface crack is proposed to explain the stress-dependent fatigue damage mechanism. The numerical study agreed compressive surface stress accelerates fatigue wear. Consequently, experimental and numerical studies on dry sliding contact damage concludes a significant dependence of the surface stress on ductile metal surface.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
