چکیده مقاله
A tribological analysis of deformations and stresses generated and their influence on surface failure in a coated surface loaded by line and point contact loading is presented A plain strain finite element method 2D FEM model has been developed for calculating the stresses and deformations for 20mmthick tungsten carbon WC / Ductile tungsten W coated steel in line contact loading and a three dimensional finite element method 3D FEM model has been developed for 5mmthick titanium nitride TiN coated steel surface in point contact loading In both cases the stress field was obtained under normal and tangential loads Because of high shear stress at the interfaces the interfacial shear stress may be the main reason for damage of the coating / substrate interfaces When the indenter is slipping, tangential tensile stress is caused in coating behind the indenter, while in front of the indenter the tangential stress is compressive
کلیدواژهها
نویسندگان
S Rash Ahmadi
Assistant Professor, Faculty of Mechanical Engineering,Urumia University
Taher Azdast
Assistant Professor,Faculty of Mechanical Engineering,Urumia University
Saeed Hoseinpour Dash Atan
M Sc Student Faculty of Mechanical Engineering,Urmia University
شیوه ارجاع
Rash Ahmadi, S and Azdast, Taher and Hoseinpour Dash Atan, Saeed,1388,Surface investigation and stress analysis of coated systems under contact loading using FEM modeling,10th Iranian Conference on Manufacturing Engineering (ICME 2010),Babol
ارائهشده در
مجموعه مقالات دهمین کنفرانس ملی مهندسی ساخت و تولید10 اسفند 1388 · بابل