{"id":95101,"date":"2009-10-07T00:00:00","date_gmt":"2009-10-07T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/laminarteko-hausturaren-analisia-material-konpositetan\/"},"modified":"2009-10-07T00:00:00","modified_gmt":"2009-10-07T00:00:00","slug":"laminarteko-hausturaren-analisia-material-konpositetan","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/propiedades-de-materiales\/laminarteko-hausturaren-analisia-material-konpositetan\/","title":{"rendered":"Laminarteko hausturaren analisia material konpositetan"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Ainhoa Arrese Arratibel <\/strong><\/h2>\n<p>El objetivo de la presente tesis doctoral es analizar la fractura interlaminar de materiales compuestos debido a que una de las limitaciones fundamentales para la utilizaci\u00f3n estructural de los composites es su baja tolerancia a la fractura interlaminar. siendo el objetivo analizar la fractura interlaminar resulta imprescindible conocer los fundamentos de la mec\u00e1nica de la fractura. Por ello se han desarrollado las ecuaciones para caracterizar la fractura interlaminar partiendo del balance de energ\u00eda de griffith.   dado que enf y 4enf son los m\u00e9todos de ensayo m\u00e1s utilizados para el an\u00e1lisis del modo ii, se ha realizado un an\u00e1lisis que incluye el efecto de las rotaciones de flexi\u00f3n con el fin de explicar las diferencias entre los resultados obtenidos mediante ambos m\u00e9todos. tras comprobar que el ensayo enf presenta ventajas con respecto a otros m\u00e9todos, el an\u00e1lisis ulterior se ha basado en torno a este m\u00e9todo de ensayo. En el presente trabajo, se propone un procedimiento para determinar la longitud de grieta tanto inicial como de propagaci\u00f3n, utilizando los datos de carga y desplazamiento resultantes del ensayo. Las previsiones te\u00f3ricas han sido sancionadas experimentalmente. tras validar la determinaci\u00f3n de la longitud de grieta y utilizando las ecuaciones desarrolladas para la tasa de liberaci\u00f3n de energ\u00eda, se han obtenido las r-curvas en modo ii que caracterizan la resistencia interlaminar. tras analizar la fractura interlaminar en modo ii, se ha estudiado la potencialidad del ensayo enf no sim\u00e9trico para caracterizar el modo mixto i\/ii. Para ello se ha realizado la descomposici\u00f3n de modos teniendo en cuenta el cortante, apreci\u00e1ndose que en algunos casos la combinaci\u00f3n de modos puede ser importante.  finalmente, se han dispersado nanotubos de carbono en el plano medio del laminado con el fin de reforzar la interl\u00e1mina. Con ello los valores de tenacidad a fractura han aumentado sensiblemente.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Laminarteko hausturaren analisia material konpositetan<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Laminarteko hausturaren analisia material konpositetan <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Ainhoa Arrese Arratibel <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Pa\u00eds vasco\/euskal herriko unibertsitatea<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 10\/07\/2009<\/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>Faustino Mujika Garitano<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: javier Canales abaitua <\/li>\n<li>Jes\u00fas alfredo G\u00ed\u00bcemes gordo (vocal)<\/li>\n<li>i\u00f1aki Mondragon ega\u00f1a (vocal)<\/li>\n<li>Jos\u00e9 Mar\u00eda Rodriguez ibabe (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Ainhoa Arrese Arratibel El objetivo de la presente tesis doctoral es analizar la fractura interlaminar de materiales [&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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