{"id":7833,"date":"1995-01-01T00:00:00","date_gmt":"1995-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/1995\/01\/01\/formulacion-e-implementacion-del-problema-elastoplastico-con-deformaciones-finitas-mediante-ecuaciones-integrales-de-contorno-y-de-dominio\/"},"modified":"1995-01-01T00:00:00","modified_gmt":"1995-01-01T00:00:00","slug":"formulacion-e-implementacion-del-problema-elastoplastico-con-deformaciones-finitas-mediante-ecuaciones-integrales-de-contorno-y-de-dominio","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/formulacion-e-implementacion-del-problema-elastoplastico-con-deformaciones-finitas-mediante-ecuaciones-integrales-de-contorno-y-de-dominio\/","title":{"rendered":"Formulacion e implementacion del problema elastoplastico con deformaciones finitas mediante ecuaciones integrales de contorno y de dominio."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Antolin Lorenzana Iban <\/strong><\/h2>\n<p>Se desarrolla la formulacion teorica para abordar el estudio de problema de mecanica de solidos deformables en los que pueden ocurrir simultaneamente no-linealidades materiales y geometricas y se plantea un metodo numerico basado en el metodo de los elementos de contorno para el analisis de este tipo de problemas bajo una serie de hipotesis. El estudio se centra en el comportamiento elastoplastico de materiales metalicos homogeneos e isotropos en los que las deformaciones elasticas son infinitesimales, pudiendo ser finitas las deformaciones plasticas. Se adopta una formulacion lagrangiano actualizada, junto con una relacion hipoelastica y el criterio de plastificacion de von mises, con ley de endurecimiento isotropo, para la resolucion del problema incremental que resulta. La obtencion de las deformaciones plasticas se realiza iterativamente mediante el algoritmo de retorno generalizado. Se implementa en ordenador solamente en caso bidimensional de deformacion plana y se necesita una discretizacion del solido no solo en el contorno sino tambien en el dominio.  esta se lleva a cabo mediante elementos de contorno continuos y celdas internas cuadrangulares, ambos isoparametricos y con aproximacion cuadratica de las variables. Se evitan los inconvenientes (integrandos hipersingulares) que se presentan en el calculo de algunas variables desarrollando un procedimiento indirecto alternativo basado en la derivacion espacial en base a las funciones de interpolacion.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Formulacion e implementacion del problema elastoplastico con deformaciones finitas mediante ecuaciones integrales de contorno y de dominio.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Formulacion e implementacion del problema elastoplastico con deformaciones finitas mediante ecuaciones integrales de contorno y de dominio. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Antolin Lorenzana Iban <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Valladolid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1995<\/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> Garrido Garc\u00eda Jos\u00e9 Antonio<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Enrique Alarcon Alvarez <\/li>\n<li>Manuel Doblar\u00e9 Castellano (vocal)<\/li>\n<li>Rafael Picon Carrizosa (vocal)<\/li>\n<li>Francisco Chinesta Soria (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Antolin Lorenzana Iban Se desarrolla la formulacion teorica para abordar el estudio de problema de mecanica de [&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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