کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6758179 1431262 2018 30 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Visualization of subsurface damage in woven carbon fiber-reinforced composites using polarization-sensitive terahertz imaging
ترجمه فارسی عنوان
تجسم آسیب های زیر سطحی در کامپوزیت های تقویت شده با فیبر کربن بافته شده با استفاده از تصویربرداری تراهرتز حساس به قطبش
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
Polarization-sensitive terahertz imaging is applied to characterize subsurface damage in woven carbon fiber-reinforced composite laminates in this study. Terahertz subsurface spectral imaging based on terahertz deconvolution is tailored and applied to detect, in a nondestructive fashion, the subsurface damage within the first ply of the laminate caused by a four-point bending test. Subsurface damage types, including matrix cracking, fiber distortion/fracture, as well as intra-ply delamination, are successfully characterized. Our results show that, although the conductivity of carbon fibers rapidly attenuates terahertz propagation with depth, the imaging capability of terahertz radiation on woven carbon fiber-reinforced composites can nonetheless be significantly enhanced by taking advantage of the terahertz polarization and terahertz deconvolution. The method demonstrated in this study is capable of extracting and visualizing a number of fine details of the subsurface damage in woven carbon fiber-reinforced composites, and the results achieved are confirmed by comparative studies with X-ray tomography.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: NDT & E International - Volume 99, October 2018, Pages 72-79
نویسندگان
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