کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
777802 1463811 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fatigue crack growth model for a thin steel plate containing hydrogen
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Fatigue crack growth model for a thin steel plate containing hydrogen
چکیده انگلیسی

A method of predicting fatigue crack growth in hydrogen-charged thin steel plates is proposed. It consists in computing modified stress intensity factors which reflect the presence of hydrogen, and using them in a fatigue crack growth equation for an uncharged plate. The modification accounts for both, hydrogen embrittlement of crack tips and hydrogen-induced residual stresses in the plate. The new stress intensity factors are derived for two special cases – uniform and stationary hydrogen distribution in the plate. With their use bounds are established on the rate of hydrogen-assisted fatigue crack growth. Theoretical results are illustrated by numerical calculations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Fatigue - Volume 32, Issue 12, December 2010, Pages 1895–1903
نویسندگان
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