کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5014955 1463719 2017 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fibre bridging effect on the Paris relation of mode I fatigue delamination in composite laminates with different thicknesses
ترجمه فارسی عنوان
اثر برهم کنش فیبر بر روی رابطه پاریس حالت خوابیده شدن خستگی در ورقه های کامپوزیت با ضخامت های مختلف
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی
Fatigue delamination with fibre bridging in composite laminates with different thicknesses was investigated. The experimental results clearly demonstrated fibre bridging had significant retardation effects on fatigue delamination behavior, making it insufficient to use a single Paris resistance curve to determine fatigue crack growth. To address this problem, the coefficients of the Paris relation were correlated to the normalized crack extension (a − a0)/Lpz. It was found that the exponent n was independent on the normalized crack extension and specimen thickness, whereas the parameter log(c) bi-linearly decreased with the normalized crack extension and kept constant once fibre bridging became saturation. And the magnitude of log(c) was independent on specimen thickness. Thus, it was concluded that fatigue delamination behavior and fibre bridging significance were independent on specimen thickness at a given normalized crack extension (a − a0)/Lpz. With substitutions of these correlations into the Paris relation, an empirical power law relation was developed to characterize fatigue delamination behavior. And its validation was verified by a comparison between predictions and experiments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Fatigue - Volume 103, October 2017, Pages 196-206
نویسندگان
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