{"id":131467,"date":"1996-01-01T00:00:00","date_gmt":"1996-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/nuevos-elementos-finitos-triangulares-planos-para-el-analisis-de-laminas-delgadas\/"},"modified":"1996-01-01T00:00:00","modified_gmt":"1996-01-01T00:00:00","slug":"nuevos-elementos-finitos-triangulares-planos-para-el-analisis-de-laminas-delgadas","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/nuevos-elementos-finitos-triangulares-planos-para-el-analisis-de-laminas-delgadas\/","title":{"rendered":"Nuevos elementos finitos triangulares planos para el analisis de laminas delgadas."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Patricio Cendoya Hernandez <\/strong><\/h2>\n<p>En este trabajo se presentan dos nuevos elementos finitos triangulares planos adecuados para el analisis de laminas delgadas. En un elemento se consideran solamente grados traslacionales de ibertad como incognitas nodales lo cual trae una serie de ventajas de caracter fisico, matematico y computacional. El otro elemento corresponde a una nueva formulacion para el conocido elemento discreto de kirchhoff dkt. La ecuacion de movimiento se resuelve mediante un esquema de integracion del tipo explicito, utilizando para la descripcion del movimiento de las particulas una formulacion lagrangiana actualizada. La estimacion del paso de tiempo critico se realiza mediante un algoritmo de busqueda del mayor autovalor del sistema discreto, lograndose acotar el valor del paso de tiempo de una forma coherente con las caracteristicas geometricas de la malla de elementos finitos y las propiedades del material de la chapa. Se considera una relacion tension-deformacion del tipo hopoelastico para el tratamiento de grandes deformaciones plasticas en piezas metalicas. Se presentan dos criterios de anisotropia plastica, particularizados para estados de tension plana y situaciones de anisotropia normal.  finalmente, se exponen una serie de aplicaciones de caracter academico e industrial en donde se validan las nuevas formulaciones de lamina delgada y el modelo constitutivo hipoelastico con superficie de fluencia anisotropa, comparandose los resultados obtenidos con valores experimentales y numericos presentados por otros investigadores.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Nuevos elementos finitos triangulares planos para el analisis de laminas delgadas.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Nuevos elementos finitos triangulares planos para el analisis de laminas delgadas. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Patricio Cendoya Hernandez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de catalunya<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1996<\/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>Eugenio O\u00f1ate Ib\u00e1\u00f1ez De Navarra<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Carlos Agelet De Saracibar Bosch <\/li>\n<li> Ayneto Gubiert Jos\u00e9 Mar\u00eda (vocal)<\/li>\n<li> Goicolea Ruigomez Jos\u00e9 Mar\u00eda (vocal)<\/li>\n<li>Jos\u00e9 Pelagay Quintana (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Patricio Cendoya Hernandez En este trabajo se presentan dos nuevos elementos finitos triangulares planos adecuados para el [&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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