کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
833236 908136 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of the attack angle on the scratch testing of an aluminium alloy by cones: Experimental and numerical studies
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Influence of the attack angle on the scratch testing of an aluminium alloy by cones: Experimental and numerical studies
چکیده انگلیسی

The transport of granular material often generates severe damage. Understanding the correlation between the friction coefficient, particle geometry and wear mechanisms is of primary importance for materials undergoing abrasive wear. The aim of this study is to investigate the effect of particle geometry on wear mechanisms and the friction coefficient. Numerical and analytical simulations and experimental results were compared. The process to be studied is the scratch made by a rigid cone with different attack angles on a 5xxx aluminium alloy (Al–Mg) flat surface. A scratch test was used and the wear mechanisms were observed for different attack angles. A numerical study with a finite element code was made in order to understand the effect of attack angles on the friction coefficient. Two numerical models with and without damage have been developed. The contact surface and the friction coefficient were studied too, and the results compared to the Bowden and Tabor model. The superposition of the numerical, analytical and experimental results showed a better correlation between the wear mechanisms and the friction coefficient. It also showed the importance of the model hypothesis used to simulate the scratch phenomenon.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 29, Issue 1, 2008, Pages 98–104
نویسندگان
, , , , ,