کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5015365 1463735 2016 28 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fatigue strength assessment of initial semi-elliptical cracks located at a hole
ترجمه فارسی عنوان
ارزیابی استحکام خستگی از ترک های نیمه بیضوی اولیه که در سوراخ واقع شده اند
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی
In the present paper, the residual strength of a pin-loaded lug and a finite plate, both with a semi-elliptical crack emanating from a hole, is examined. A new analytical methodology, based on Fracture Mechanics concepts, is proposed to analyse the crack propagation process in terms of life estimation and crack front evolution. Firstly, the stress field and the stress intensity factor are computed by applying both analytical and numerical approaches. Then, the two-parameter driving force model proposed by Kujawski is implemented for the fatigue life estimation and the crack front evolution. The validity of model here employed is assessed through the comparison between crack growth calculations and experimental data available in the literature, such comparison shows a quite good correlation for the crack and geometrical configurations here examined.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Fatigue - Volume 92, Part 2, November 2016, Pages 548-556
نویسندگان
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