Journal
NDT & E INTERNATIONAL
Volume 44, Issue 2, Pages 216-225Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ndteint.2010.08.006
Keywords
Infrared thermography; Laser; Thermal imaging; Simulation; Finite difference method; Cracks; Image processing
Funding
- Engineering and Physical Science Research Council (EPSRC)
- UK Research Centre in NDE (RCNDE)
- Rolls Royce plc
- RWE Npower
- National Nuclear Laboratory
- EPSRC [EP/F024096/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/F024096/1] Funding Source: researchfish
Ask authors/readers for more resources
A new crack imaging technique is presented that is based on second derivative image processing of thermal images of laser heated spots. Experimental results are shown that compare well with those obtained by the dye penetrant inspection method. A 3D simulation has been developed to simulate heat flow from a laser heated spot in the proximity of a crack. A 'ghost point' method has been used to deal efficiently with cracks having openings in the micometre range. Results are presented showing the effects of crack geometry and system parameters on thermal images of laser heated spots. (C) 2010 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
