169494 20260302165029.0 doi 10.1007/s10765-014-1676-3 sideral 91882 ART-2015-91882 eng Celorrio, R. Universidad de Zaragoza (orcid)0000-0003-2183-2159 Advances in Crack Characterization by Lock-In Infrared Thermography 2015 Detecting cracks in a nondestructive way is a challenge that has been addressed for decades but which is not completely solved yet. For the last years, infrared thermography has been the preferred photothermal technique to detect cracks, because of its capability to record surface temperature images. In this work, a discontinuous Galerkin (DG) finite element method has been developed to simulate the temperature evolution of an opaque sample with inner cracks characterized by their thermal contact resistance. DG methods are natural tools to tackle physical problems with discontinuous solutions where classical finite element methods fail. Discontinuous finite elements allow calculation of the surface temperature modification due to the presence of cracks of any size, shape, and thickness. Lock-in infrared thermography measurements, performed on calibrated vertical cracks in metallic samples, confirm the validity of the model. info:eu-repo/semantics/closedAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 0.946 2015 MECHANICS 94 / 135 = 0.696 2015 Q3 T3 THERMODYNAMICS 39 / 57 = 0.684 2015 Q3 T3 PHYSICS, APPLIED 113 / 144 = 0.785 2015 Q4 T3 CHEMISTRY, PHYSICAL 120 / 144 = 0.833 2015 Q4 T3 0.391 2015 Condensed Matter Physics 2015 Q3 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Omella, A. J. Universidad de Zaragoza (orcid)0000-0002-3143-9097 Mendioroz, A. Oleaga, A. Salazar, A. 2005 595 Universidad de Zaragoza Dpto. Matemática Aplicada Área Matemática Aplicada 2005 X Universidad de Zaragoza Dpto. Matemática Aplicada Proy. investigación HMA 36, 5-6 (2015), 1202-1207 Int. j. thermophys. INTERNATIONAL JOURNAL OF THERMOPHYSICS 0195-928X 506299 http://zaguan.unizar.es/record/169494/files/texto_completo.pdf Versión publicada 1115783 http://zaguan.unizar.es/record/169494/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:169494 articulos driver 2026-03-02-14:47:49 ARTICLE