کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
617299 1454988 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Wear impact on rolling contact fatigue crack growth in rails
ترجمه فارسی عنوان
تاثیر در رشد ریزش خستگی در ریل ها در ریل تاثیر می گذارد
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
چکیده انگلیسی

Wear and rolling contact fatigue of rails are a major problem for the railway industry and it is of great importance to develop models for prediction of rail life. In this paper, a 2D FE model is used to simulate crack growth of a single head check-like RCF crack in an idealised rail. The presented model takes into account wear through crack truncation and allows for crack curving. The influence of a number of parameters on the net crack growth rate is presented for different values of the dissipated contact energy TγTγ. Studied parameters include surface friction, contact pressure, fluid pressurisation and wear coefficient. From the studies it is concluded that the net growth rate is highly dependent on all the studied parameters. This highlights the need for accurate estimates of contact forces and material parameters in order to accurately determine wear impact on crack growth in rails.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volume 314, Issues 1–2, 15 June 2014, Pages 13–19
نویسندگان
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