کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
280308 | 1430380 | 2007 | 11 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Monitoring damage in holed CFRP laminates using embedded chirped FBG sensors Monitoring damage in holed CFRP laminates using embedded chirped FBG sensors](/preview/png/280308.png)
This study proposes a new approach to monitoring the damage process in holed CFRP laminates using an embedded chirped fiber Bragg grating (FBG) sensor. To this end, we experimentally and numerically investigated the damage process and the damage-induced changes in the spectrum shape. It was experimentally confirmed that multiple types of damage (e.g., splits, transverse cracks and delamination) appeared near a hole, and that the spectrum shape of the embedded chirped FBG sensor changed as the damage extended. Our proposed simulation for the reflection spectrum considering the damage agreed with the experiments. Furthermore, this study investigated the effect of each damage pattern on the changes in the spectrum shape. Finally, based on these discussions, we present simple damage identifications with the embedded chirped FBG for the holed CFRP laminates under completely unloaded conditions.
Journal: International Journal of Solids and Structures - Volume 44, Issue 2, 15 January 2007, Pages 603–613