کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
619500 1455070 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An analysis of elasto-plastic sliding spherical asperity interaction
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
An analysis of elasto-plastic sliding spherical asperity interaction
چکیده انگلیسی

This work seeks to characterize the component of friction, which arises from energy being dissipated via elasto-plastic deformation during sliding contact (as apposed to adhesive mechanisms). The sliding interaction between spheres is analyzed using two approaches (a semi-analytical and finite element simulation). These analyses are used to formulate empirical equations, which describe the average tangential and normal forces resulting from the sliding interaction. A parametric study of the properties of typical metals is then used to help verify the effectiveness of the empirical equations. The study shows that the effective friction coefficient between spherical asperities increases with the elastic modulus, decreases with yield strength, and increases with the interference between the contacts (dependant on the normal load).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volume 262, Issues 1–2, 4 January 2007, Pages 210–219
نویسندگان
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