{"id":28955,"date":"2004-02-03T00:00:00","date_gmt":"2004-02-03T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/modelos-de-elementos-finitos-para-el-calculo-de-arcos-validacion-en-estructuras-agroindustriales-de-acero\/"},"modified":"2004-02-03T00:00:00","modified_gmt":"2004-02-03T00:00:00","slug":"modelos-de-elementos-finitos-para-el-calculo-de-arcos-validacion-en-estructuras-agroindustriales-de-acero","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/castilla-la-mancha\/modelos-de-elementos-finitos-para-el-calculo-de-arcos-validacion-en-estructuras-agroindustriales-de-acero\/","title":{"rendered":"Modelos de elementos finitos para el calculo de arcos. validaci\u00f3n en estructuras agroindustriales de acero"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  L\u00f3pez Perales Jes\u00fas Antonio <\/strong><\/h2>\n<p>En el mundo de la ingenier\u00eda, desde siempre ha habido una gran atracci\u00f3n por la forma del arco y su fen\u00f3meno resistente. Su aparente sencillez y la pureza de la l\u00ednea que configura su forma encierra una estructura que se adapta perfectamente para resistir cargar y vencer grandes luces.  al analizar los m\u00e9todos de c\u00e1lculo, el estudio se inicia con el m\u00e9todo de los desplazamientos, que resuelve la cuesti\u00f3n con una perspectiva pedag\u00f3gica, al seguir las deformaciones el desarrollo del fen\u00f3meno f\u00edsico correspondiente, a diferencia de los m\u00e9todos englobados bajo el nombre de energ\u00e9ticos, que hacen intervenir entidades no tangibles que permiten directamente a las expresiones fundamentales de la flexi\u00f3n, compresi\u00f3n y cortadura.  especial hincapi\u00e9 se ha realizado en el estudio de los arcos mediante el mef. Se desarrolla un modelo, denominado elemento de p\u00f3rtico plano, en el que previamente se realiza una descretizaci\u00f3n del arco en elementos rectos. El elemento de p\u00f3rtico plano se ha determinado siguiendo los modelos de timoshenko y de enter-bernoulli, obteni\u00e9ndose todas las expresiones que se resumen en la matriz de rigidez completa del elemento.  por \u00faltimo se analiza el pandeo de estas estructuras, comenzando por estudios emp\u00edricos para arcos concretos y continuando con la generalizaci\u00f3n y estudio del pandeo global mediante autovalores, obteniendose la matriz de rigidez geom\u00e9trica del arcod. Adem\u00e1s se introduce la base matem\u00e1tica para analizar el pandeo no lienal de los arcos.  todo este an\u00e1lisis te\u00f3rico se ha plasmado en la realizaci\u00f3n de aplicaciones inform\u00e1ticas para el estudio de arcos biarticulados y biempotrados, de directriz parab\u00f3lica o circular, realizada en la hoja de c\u00e1lculo microsoft excel, con el deseo de que pueda ejecutarse sin restricciones en la mayor parte de los ordenadores personales.  tambi\u00e9n se ha obtenido la carga cr\u00edtica de pandeo para arcos con luces de 20 a 40 m y rebajamientos comp<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Modelos de elementos finitos para el calculo de arcos. validaci\u00f3n en estructuras agroindustriales de acero<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Modelos de elementos finitos para el calculo de arcos. validaci\u00f3n en estructuras agroindustriales de acero <\/li>\n<li><strong>Autor:<\/strong>\u00a0  L\u00f3pez Perales Jes\u00fas Antonio <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Castilla-la mancha<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 02\/03\/2004<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Luis L\u00f3pez Garc\u00eda<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal:  Marcet roig Jos\u00e9 ram\u00f3n <\/li>\n<li>elvira S\u00e1nchez espinosa (vocal)<\/li>\n<li> L\u00f3pez cela Juan  Jos\u00e9 (vocal)<\/li>\n<li> Ferrer gisbert Carlos Manuel (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de L\u00f3pez Perales Jes\u00fas Antonio En el mundo de la ingenier\u00eda, desde siempre ha habido una gran atracci\u00f3n [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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