Laser active thermography for debonding detection in FRP retrofitted concrete structures

Cited 3 time in webofscience Cited 0 time in scopus
  • Hit : 209
  • Download : 0
The surface of Fiber Reinforced Polymer (FRP) concrete is heated with a line laser beam, and the corresponding heat responses are measured by an infrared (IR) camera. Local heat distribution anomalies caused by interfacial debonding between FRP and concrete are automatically traced and detected as defect based on image processing of IR images. Through numerical simulations and lab-scale experiments, the performance of the laser active thermography for the FRP retrofitted concrete inspection was compared with the performance of a halogen lamp based thermography. This comparison shows that the laser active thermography offers a longer inspection range (over 5 m), better damage sensitivity (detecting damage larger than 10 mm diameter), lower power consumption (15W laser excitation), and reduced false alarms due to external noises.
Publisher
ELSEVIER SCI LTD
Issue Date
2020-09
Language
English
Article Type
Article
Citation

NDT & E INTERNATIONAL, v.114

ISSN
0963-8695
DOI
10.1016/j.ndteint.2020.102285
URI
http://hdl.handle.net/10203/275429
Appears in Collection
CE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 3 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0