Simulation of defects in aluminium castings using CAD models of flaws and real X-ray images

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dc.contributor.authorMery, D
dc.contributor.authorHahn, D
dc.contributor.authorHitschfeld, N
dc.date.accessioned2024-01-10T14:21:40Z
dc.date.available2024-01-10T14:21:40Z
dc.date.issued2005
dc.description.abstractIn order to evaluate the sensitivity of defect inspection systems, it is convenient to examine simulated data. This gives the possibility to tune the parameters of the inspection method and to test the performance of the system in cases where the detection is known to be difficult. In this paper, an interactive environment for the simulation of defects in radioscopic images of aluminium castings is presented. The approach simulates only the flaws and not the whole radioscopic image of the object under test. A manifold surface is used to model a flaw with complex geometry, which is projected and superimposed onto real radioscopic images of a homogeneous object according to the exponential attenuation law for X-rays. The new grey value of a pixel, where the 3D flaw is projected, depends only on four parameters: a) the grey value of the original X-ray image without flaw; b) the linear absorption coefficient of the examined material; c) the maximal thickness observable in the radioscopic image; and d) the length of the intersection of the 3D flaw with the modelled X-ray beam, that is projected into the pixel. The approach allows the user the simulation of complex flaws at any position of an aluminium casting. Simulation results of flaws like blow holes and cracks on X-ray images are shown and contrasted with real digital images with real flaws.
dc.format.extent7 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1784/insi.2005.47.10.618
dc.identifier.eissn1754-4904
dc.identifier.issn1354-2575
dc.identifier.urihttps://doi.org/10.1784/insi.2005.47.10.618
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79745
dc.identifier.wosidWOS:000232793200010
dc.information.autorucIngeniería;Mery D;S/I;102382
dc.issue.numero10
dc.language.isoen
dc.nota.accesoSin adjunto
dc.pagina.final624
dc.pagina.inicio618
dc.publisherBRITISH INST NON-DESTRUCTIVE TESTING
dc.revistaINSIGHT
dc.rightsregistro bibliográfico
dc.subjectINSPECTION
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.titleSimulation of defects in aluminium castings using CAD models of flaws and real X-ray images
dc.typeartículo
dc.volumen47
sipa.codpersvinculados102382
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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