چکیده مقاله
A three dimensional finite element model FEM for describing the elastic and plastic behavior of coated system during sliding indentation has been developed Influence of elastic deformation on pile up and dependence of pile up on penetration depth, contact friction were analyzed In this case a wide range of materials with different elastic modulus, yield stresses, strainhardening exponents, and friction coefficients were examined Results show that during the process, after initially sinking in at small depths of penetration, the pile up for many materials evolves and increases gradually as the indenter is driven in to the material Even when deformation enters the fully developed plastic stage, the pile up geometry continues to change in manners that can significantly affects the contact area It is also shown that contact friction affects considerably the pile up heights Meanwhile this study develop a comprehensive framework for calculating the elastic plastic stresses and strains during sliding indentation of coated systems
کلیدواژهها
نویسندگان
S. Rash Ahmadi
Faculty of Engineering, Mechanical Engineering Department, Urmia University, Urmia, Iran
A. Donyavi
Faculty of Engineering, Mechanical Engineering Department, Urmia University, Urmia, Iran
A. Vedaei sabegh
Faculty of Engineering, Mechanical Engineering Department, Urmia University, Urmia, Iran
B. Gholamzadeh
Faculty of Engineering, Mechanical Engineering Department, Shabestar Islamic Azad University, East Azarbaijan, Iran
شیوه ارجاع
Rash Ahmadi, S. and Donyavi, A. and Vedaei sabegh, A. and Gholamzadeh, B.,1390,Dependence of pile-up on elastic deformation, penetration depth and contact friction during sliding indentation,12th Iranian Conference on Manufacturing Engineering (ICME 2010),Tehran
ارائهشده در
مجموعه مقالات دوازدهمین کنفرانس ملی مهندسی ساخت و تولید ایران6 دی 1390 · تهران