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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yunze He Ruizhen Yang |
| Copyright Year | 2005 |
| Abstract | Imaging inspection is highly demanded in the optimization of industry processes. Optical imaging inspection is not applicable for inside defects, while infrared (IR) imaging inspection can provide information about internal structure of objects. Eddy current thermography is an emerging IR imaging inspection technique for conductive materials or objects. This paper presents eddy current volume heating thermography (ECVHT) and phase analysis for delamination inspection in carbon fiber reinforced plastics (CFRPs) based on the previously proposed eddy current pulsed phase thermography (ECPPT). The proposed method has been verified through experimental studies under both transmission and reflection modes. After discrete Fourier transform (DFT) of temperature responses, the phasegram and phase spectra can be used to image and characterize interface delamination in CFRP due to elimination of nonuniform heating effect and carbon fiber structures. With the whole temperature response processed by DFT, carbon fiber structures and delamination can be differentiated due to periodic oscillation of phase spectra. With temperature response in cooling phase processed by DFT, some characteristic features can be extracted to construct the new phase images according to the shape of phase spectra. In all, using ECVHT and phase analysis, imaging characterization for delamination can get much better performance than conventional visible optical inspection system and eddy current pulsed thermography. |
| Sponsorship | IEEE Industrial Electronics Society |
| Starting Page | 1287 |
| Ending Page | 1297 |
| Page Count | 11 |
| File Size | 1833519 |
| File Format | |
| ISSN | 15513203 |
| Volume Number | 11 |
| Issue Number | 6 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2015-01-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Heating Delamination Eddy currents Reflection Inspection Cameras Surface waves Volume heating thermography (VHT) Carbon fiber reinforced plastic Imaging inspection Induction heating Infrared imaging Non-destructive testing Phase analysis volume heating thermography (VHT) Carbon fiber reinforced plastic (CFRP) delamination imaging inspection induction heating infrared (IR) imaging nondestructive testing phase analysis |
| Content Type | Text |
| Resource Type | Article |
| Subject | Control and Systems Engineering Information Systems Electrical and Electronic Engineering Computer Science Applications |
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