{"id":71245,"date":"2018-03-09T23:15:50","date_gmt":"2018-03-09T23:15:50","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/efectos-tridimensionales-en-la-determinacion-de-la-tenacidad-de-fractura-dinamica\/"},"modified":"2018-03-09T23:15:50","modified_gmt":"2018-03-09T23:15:50","slug":"efectos-tridimensionales-en-la-determinacion-de-la-tenacidad-de-fractura-dinamica","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-tecnologicas\/efectos-tridimensionales-en-la-determinacion-de-la-tenacidad-de-fractura-dinamica\/","title":{"rendered":"Efectos tridimensionales en la determinacion de la tenacidad de fractura dinamica"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jos\u00e9 Antonio Loya Lorenzo <\/strong><\/h2>\n<p>En esta tesis doctoral, se ha estudiado la posible influencia de efectos tridimensionales  en la determinaci\u00f3n de la tenacidad de fractura din\u00e1mica de iniciaci\u00f3n, kid, a alta velocidad de deformaci\u00f3n.  para ello se ha puesto a punto un dispositivo experimental basado en una modificaci\u00f3n de la barra hopkinson de compresi\u00f3n que permite realizar ensayos de flexi\u00f3n din\u00e1mica a alta velocidad de deformaci\u00f3n as\u00ed como un sistema de fotograf\u00eda de alta velocidad capaz de medir los desplazamientos que sufren determinados puntos de la probeta.  las im\u00e1genes obtenidas durante el ensayo han sido procesadas mediante un programa de tratamiento de im\u00e1genes desarrollado espec\u00edficamente para este fin.  se ha realizado un estudio num\u00e9rico tridimensional de los ensayos, incluyendo el dispositivo experimental completo, y aplicado un criterio local de fractura para estimar num\u00e9ricamente kid.  se han ensayado probetas de aleaci\u00f3n de aluminio de distinto espesor y distinta longitud inicial de fisura a distinta velocidad de impacto para determinar el efecto de dichos par\u00e1metros en kid de dicho material, y comparado con los calculados mediante an\u00e1lisis num\u00e9rico.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Efectos tridimensionales en la determinacion de la tenacidad de fractura dinamica<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Efectos tridimensionales en la determinacion de la tenacidad de fractura dinamica <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jos\u00e9 Antonio Loya Lorenzo <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Carlos III de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 15\/11\/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>Jos\u00e9 Fern\u00e1ndez S\u00e1ez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Carlos Navarro ugena <\/li>\n<li>Santiago Hernandez iba\u00f1ez (vocal)<\/li>\n<li>Miguel angel Astiz suarez (vocal)<\/li>\n<li>alfonso Fernandez canteli (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jos\u00e9 Antonio Loya Lorenzo En esta tesis doctoral, se ha estudiado la posible influencia de efectos tridimensionales [&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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