کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7172704 | 1463809 | 2011 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modeling crack closure and damage in variable amplitude fatigue using smooth specimen fatigue test data
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
⺠In constant amplitude fatigue loading the crack opening stress increases in an exponential manner until it reaches a steady state level. The steady state crack opening stress levels follow the trends predicted by model proposed. ⺠Deriving the steady state crack opening stresses from constant amplitude and underload fatigue data for smooth specimens gave a good fit to the crack opening stresses measured using crack growth specimens. ⺠Using the test procedure suggested in this paper, we were able to obtain data for crack opening stress recovery to a steady state level after underloads (and the associated crack closure parameter) from smooth specimen tests. ⺠The effective intensity versus crack growth rate curve parameters obtained from smooth specimen tests give a good fit to the experimental crack growth data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Fatigue - Volume 33, Issue 2, February 2011, Pages 223-231
Journal: International Journal of Fatigue - Volume 33, Issue 2, February 2011, Pages 223-231
نویسندگان
M. El-Zeghayar, T.H. Topper, F.A. Conle, J.J.F. Bonnen,