Normal contact between an elastoplastic medium and a rigid sphere: Experimental and computational observations
Contacto normal entre un medio elastoplástico continuo y una esfera rígida: Observaciones experimentales y computacionales
| dc.creator | Pedraza, Ángela María | |
| dc.creator | Guevara, Ángela Rocío | |
| dc.creator | Camacho, Javier | |
| dc.creator | Vargas, Watson L. | |
| dc.date | 2005-11-01 | |
| dc.date.accessioned | 2022-12-15T15:59:08Z | |
| dc.date.available | 2022-12-15T15:59:08Z | |
| dc.identifier | https://revistas.unimilitar.edu.co/index.php/rcin/article/view/1253 | |
| dc.identifier | 10.18359/rcin.1253 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/5355466 | |
| dc.description | This work presents an experimental and numerical investigation on the normal contact between a rigid sphere and a plane one, whose mechanical behaviour has been assumed to be elastoplastic. The stresses in the region of contact have been accessed by means of photoelastic visualization. The evolution of the stress bulbs below the point of contact has been evaluated numerically and a comparison with experimental observations has been performed. The results indicate that a tridimentional elastoplastic model can capture the main features observed in the physical experiments. This academic exercise emphasizes the potential of the finite element method on the solution of deformation problems, considering different constitutive models; it also shows the importance of mathematical and computational modelling based on continuous approaches. | en-US |
| dc.description | Se presenta en este trabajo una investigación experimental y numérica del contacto normal de una esfera rígida con una placa plana de material cuyo comportamiento mecánico se asume de tipo elasto-plástico. Los esfuerzos locales bajo el punto de contacto se han obtenido experimentalmente mediante visualización foto-elástica. Se ha evaluado numéricamente la evolución de los bulbos de esfuerzo bajo el punto contacto como función del tiempo y se ha efectuado la comparación con las observaciones experimentales. Los resultados indican que un modelo elasto-plástico tridimensional reproduce de manera apropiada las características principales observadas en los experimentos físicos. Este ejercicio puramente académico y de carácter didáctico enfatiza en el enorme potencial de los elementos finitos en la solución de problemas de deformación bajo diferentes tipos de modelos constitutivos y pone de manifiesto la enorme utilidad del modelamiento matemático y computacional basado en aproximaciones continuas de la materia. | es-ES |
| dc.format | application/pdf | |
| dc.language | spa | |
| dc.publisher | Universidad Militar Nueva Granada | es-ES |
| dc.relation | https://revistas.unimilitar.edu.co/index.php/rcin/article/view/1253/980 | |
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| dc.rights | Derechos de autor 2016 Ciencia e Ingeniería Neogranadina | es-ES |
| dc.rights | https://creativecommons.org/licenses/by-nc-nd/4.0 | es-ES |
| dc.source | Ciencia e Ingenieria Neogranadina; Vol. 15 (2005); 30-43 | en-US |
| dc.source | Ciencia e Ingeniería Neogranadina; Vol. 15 (2005); 30-43 | es-ES |
| dc.source | Ciencia e Ingeniería Neogranadina; v. 15 (2005); 30-43 | pt-BR |
| dc.source | 1909-7735 | |
| dc.source | 0124-8170 | |
| dc.subject | FEM | en-US |
| dc.subject | photoelasticity | en-US |
| dc.subject | constitutive models | en-US |
| dc.subject | elementos finitos | es-ES |
| dc.subject | fotoelasticidad | es-ES |
| dc.subject | modelos constitutivos | es-ES |
| dc.title | Normal contact between an elastoplastic medium and a rigid sphere: Experimental and computational observations | en-US |
| dc.title | Contacto normal entre un medio elastoplástico continuo y una esfera rígida: Observaciones experimentales y computacionales | es-ES |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/publishedVersion |