کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
619262 1455058 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A numerical model for the evaluation of fretting fatigue crack initiation in rough point contact
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
A numerical model for the evaluation of fretting fatigue crack initiation in rough point contact
چکیده انگلیسی

A numerical model for the evaluation of fretting fatigue crack initiation for a rough contact was developed. The macro-geometry is based on a sphere-on-plane contact which can be modulated with arbitrary micro-geometry. Tangential traction and simple elastic-perfectly plastic deformation were included in the model. The model is based on the Boussinesq equations and the multi-axial Dang Van fatigue criterion. This study focused on the trends of cracking risk behaviour. The calculated results show that elastic rough surfaces involve a considerably higher cracking risk, especially in the surface, than ideally smooth surfaces. The effect of amplitude and wavelength of surface waviness on cracking risk is presented and discussed. Experimental results are needed for the final interpretation and confirmation of the results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volume 264, Issues 9–10, 10 April 2008, Pages 750–756
نویسندگان
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