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Revista EIA
versão impressa ISSN 1794-1237
Resumo
MELENDEZ-LOZADA, Fernando; RESTREPO-MARTINEZ, Alejandro e LOPEZ-GIRALDO, Francisco Eugenio. Description of Multilayer Plastic Films Behavior in Thermodeformation Processes by Digital Photoelasticity Analysis. Rev.EIA.Esc.Ing.Antioq [online]. 2018, vol.15, n.30, pp.99-111. ISSN 1794-1237. https://doi.org/10.24050/reia.v15i30.1154.
The aim of this paper is describes in thickness terms the dynamic behavior of the multilayer plastic film in a thermoforming process under two temperature conditions (T1=20°C, T2=60°C) using the photoelasticity how no-contact technique. The interference colors showed on the photoelastic images is associated with the thickness of the plastic film and through the training of a learning algorithm type ANFIS is related color with thickness. The neuro-fuzzy net associated to each color intensity of pixel with the thickness measured, obtaining at the output a thickness image in gray scale. It is concluded that interference colors are directly correlated with the film thickness and the temperature favors the deformation allowing to achieve in smaller thicknesses in less time.
Palavras-chave : Digital photoelasticity; Anfis; Color learning; Artificial vision.