Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Juan C. Briñez-de León"'
Autor:
Juan C. Briñez de León, Hermes A. Fandiño Toro, Alejandro Restrepo Martínez, John W. Branch Bedoya
Publikováno v:
Visión Electrónica, Vol 11, Iss 1, Pp 69-75 (2017)
En imágenes de fotoelasticidad, los patrones de franjas envuelven el campo de esfuerzos de un cuerpo birrefringente bajo cargas mecánicas. En estos casos, zonas con concentraciones de esfuerzos producen altas densidades de franjas, dificultando la
Externí odkaz:
https://doaj.org/article/550ee3c0b68143baad47eda95f1b5dc2
Autor:
Hermes A. Fandiño Toro, Juan C. Briñez de León, Alejandro Restrepo Martínez, John W. Branch Bedoya
Publikováno v:
Visión Electrónica, Vol 11, Iss 1, Pp 89-98 (2017)
Análisis de campos de esfuerzos en imágenes de fotoelasticidad son llevados a cabo mediante descriptores de textura en este artículo. En este caso, los descriptores considerados permiten identificar zonas con altas concentraciones de esfuerzo, inc
Externí odkaz:
https://doaj.org/article/d820a248cf0f4e43bc1015cdb7b1f740
Publikováno v:
TecnoLógicas, Vol 0, Iss 0, Pp 695-707 (2013)
This work proposes an approach for mechanical behavior description in the plastic film deformation using techniques for the images analysis, which are based on the intensities evolution of fixed pixels applied to an images sequence acquired through p
Externí odkaz:
https://doaj.org/article/0352033a8c3f49ddab20d727f58987ee
Publikováno v:
Dyna, Vol 80, Iss 179, Pp 42-50 (2013)
La mayoría de los trabajos realizados en el campo de la fotoelasticidad se han centrado en el estudio de la distribución de esfuerzos en materiales birrefringentes de espesor definido debido a la complejidad que presenta la relación entre el espes
Externí odkaz:
https://doaj.org/article/c13280d69bb6403880be92c167b407c3
Publikováno v:
Applied optics. 61(7)
Quantifying the stress field induced into a piece when it is loaded is important for engineering areas since it allows the possibility to characterize mechanical behaviors and fails caused by stress. For this task, digital photoelasticity has been hi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29251da5bd7ba951083c3ac4805bcc1d
https://pubmed.ncbi.nlm.nih.gov/35297828
https://pubmed.ncbi.nlm.nih.gov/35297828
Publikováno v:
Imaging and Applied Optics Congress 2022 (3D, AOA, COSI, ISA, pcAOP).
Digital photoelasticity requires demodulating stress fields, wrapped into color fringe patterns. As an alternative to traditional methods, deep convolutional neural networks are trained to recover stress maps from isochromatic images related to diffe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::872b80826a272f9662df22040895c94c
https://doi.org/10.1364/3d.2022.jw2a.6
https://doi.org/10.1364/3d.2022.jw2a.6
Publikováno v:
Optics and Photonics for Information Processing XV.
To simplify the implementation of photoelasticity studies, the recently introduced Thermal Transient Stepping (TTS) method produces a stress field, from images with fringe displacements induced by temperature. These images are acquired without using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7b7e0c29cec84d4ca1c1383c220fdc2
https://doi.org/10.1117/12.2594374
https://doi.org/10.1117/12.2594374
Autor:
Jhonatan Rendón Arango, Juan C. Briñez de León, Alejandro Restrepo Martínez, Hermes A. Fandiño Toro
Publikováno v:
Optics and Photonics for Information Processing XV.
Evaluation of residual and thermal stresses using temporal analysis of color in photoelasticity images was applied to three discs with residual stresses in different zones. The stress field generated by a compressive load is deformed under residual s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1847a87fbc254ba59097ca58c900f6ce
https://doi.org/10.1117/12.2594518
https://doi.org/10.1117/12.2594518
Publikováno v:
Optics and Photonics for Information Processing XV.
Digital photoelasticity is used for evaluating the stress in loaded bodies. However, when dynamic analyses are needed, the motions of optical elements are an experimental challenge. This new computational hybrid approach calculates the stress field b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bcb6a906416e1f58aa2b1ebec76e6c25
https://doi.org/10.1117/12.2594296
https://doi.org/10.1117/12.2594296
Publikováno v:
Optics and Lasers in Engineering. 122:195-208
Digital photoelasticity often evaluates the stress fields in loaded structures by processing the colour intensities recorded in digital images. This makes the evaluation process sensitive to the accuracy of the colours recorded by cameras. This paper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b602320f691c7636adafead941c8a05
https://doi.org/10.1016/j.optlaseng.2019.06.004
https://doi.org/10.1016/j.optlaseng.2019.06.004