کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
294963 511507 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Non contact inspection of the fatigue damage state of carbon fiber reinforced polymer by optical surface roughness measurements
ترجمه فارسی عنوان
بازرسی بدون تماس از وضعیت آسیب خفیف از پلیمر تقویت شده فیبر کربن با اندازه گیری زبری سطح نوری
کلمات کلیدی
خستگی کامپوزیت آزمون غیر مخرب، بازرسی بدون تماس، بازرسی نوری
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی


• We have tested coupons of advanced carbon fiber material under tensile fatigue loads.
• We evaluate topography variations of the coupon surface by measuring the roughness.
• We compare roughness magnitude versus number of cycles and stiffness degradation.
• The roughness magnitude increases due to the damage accumulation on the material.
• Results show a linear correlation of 79% between roughness and stiffness degradation.

This work presents the evaluation of a new non-contact technique to assess the fatigue damage state of CFRP structures by measuring surface roughness parameters. Surface roughness and stiffness degradation have been measured in CFRP coupons cycled with constant amplitude loads, and a Pearson׳s correlation of 0.79 was obtained between both variables. Results suggest that changes on the surface roughness measured in strategic zones of components made of the evaluated CFRP, could be indicative of the level of damage due to fatigue loads. This methodology could be useful for other FRP due to similarities in the fatigue damage process.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: NDT & E International - Volume 70, March 2015, Pages 22–28
نویسندگان
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