کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7002084 1454786 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of surface roughness on local friction and temperature distributions in a steel-on-steel fretting contact
ترجمه فارسی عنوان
اثرات زبری سطحی بر توزیع اصطکاک و دمای موضعی در یک اتصال فولادی بر روی فولاد
کلمات کلیدی
زبری سطح، اصطکاک، درجه حرارت، تماس فریبنده
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
چکیده انگلیسی
It has generally been assumed that initial surface roughness has significant influences on local frictional shear stresses and flash temperatures in fretting contacts. However, since these hypotheses are difficult to directly measure, the frictional shear stress and temperature rise distributions in a steel-on-steel fretting contact are investigated by finite element method. The rough contacting surfaces were modelled as fractal surfaces by the Weierstrass-Mandelbrot function. The simulation results show that the frictional shear stress distribution resulted from the rough contact model is discrete, and the local stresses are highly concentrated which result in higher peak temperature rise than that from the smooth contact model. The influences of the plasticity of materials, load and frequency on the temperature rise are also discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tribology International - Volume 120, April 2018, Pages 350-357
نویسندگان
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