کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
822749 906806 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Damage identification in a holed CFRP laminate using a chirped fiber Bragg grating sensor
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Damage identification in a holed CFRP laminate using a chirped fiber Bragg grating sensor
چکیده انگلیسی

This study proposes damage identification for holed CFRP cross-ply laminates using an embedded chirped fiber Bragg grating (FBG) sensor. We investigated changes in the reflection spectrum of the chirped FBG sensor due to damage near the hole. The reflection spectrum of the chirped FBG sensor was further studied by estimating the strain distribution along the gage section as an inverse problem based on the spectrum shape. We experimentally confirmed that the reflection spectrum of the chirped FBG sensor changed distinctively within certain wavelengths when each type of damage (transverse cracks or delamination) occurred and extended. Local strain changes were estimated from the reflection spectrum of the chirped FBG sensor; their locations coincided with those for the observed transverse cracks. We also demonstrate damage identification for the holed specimen and conclude that this feature of the chirped FBG sensor provides successful identification of a damage pattern near the hole.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 67, Issue 2, February 2007, Pages 286–295
نویسندگان
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