کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7004712 | 1454997 | 2013 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Rough surface and damage mechanics wear modeling using the combined finite-discrete element method
ترجمه فارسی عنوان
مدل های سطحی خشن و مکانیک آسیب دیده با استفاده از روش ترکیبی محدود و گسسته
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کلمات کلیدی
لباس پوشیدن، عناصر محدود گسسته ترکیبی، زبری سطح، مکانیک آسیب
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
چکیده انگلیسی
In this investigation the combined finite discrete element method was used to analyze fretting wear of rough and smooth Hertzian contacts using the Archard wear equation and continuum damage mechanics. Surface roughness profiles were generated using the Voronoi tessellation procedure and scaled in order to analyze the effect of roughness on fretting wear. Using the Archard equation, wear loss increased with roughness in the partial slip regime. In contrast, in the gross slip regime roughness only played a role at the beginning of a test before all of the asperities had been removed. Using the damage mechanics, subsurface damage accumulation was found to be a linear function of cycles. In this approach, a long breaking-in period occurred before the first wear particles were detached from the surface; however, following initiation, wear loss was approximately a linear function of cycle number. The shape and evolution of fretting wear scars were in agreement with experimental results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volume 305, Issues 1â2, 30 July 2013, Pages 312-321
Journal: Wear - Volume 305, Issues 1â2, 30 July 2013, Pages 312-321
نویسندگان
Benjamin D. Leonard, Farshid Sadeghi, Sachin Shinde, Marc Mittelbach,