{"id":4606,"date":"2026-08-12T14:47:10","date_gmt":"2026-08-12T12:47:10","guid":{"rendered":"https:\/\/ellistat.com\/?post_type=guide-dutilisateur&#038;p=4606"},"modified":"2026-08-12T14:47:10","modified_gmt":"2026-08-12T12:47:10","slug":"tension-resistencia","status":"publish","type":"guide-dutilisateur","link":"https:\/\/ellistat.com\/es\/guide-dutilisateur\/contrainte-resistance\/","title":{"rendered":"Tensi\u00f3n-resistencia"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Un producto falla cuando la&nbsp;<strong>restricci\u00f3n<\/strong>&nbsp;que sufre supera su&nbsp;<strong>resistencia<\/strong>. Dado que ambas est\u00e1n dispersas, la fallencia es la probabilidad de solapamiento entre ambas distribuciones.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Esta p\u00e1gina calcula esta tasa a partir de las dos leyes. Estas pueden definirse mediante\u00a0<strong>distribuciones te\u00f3ricas<\/strong>\u00a0o mediante\u00a0<strong>datos experimentales<\/strong>. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Por ejemplo, supongamos un producto cuya ley de fallo se ha calculado: Weibull,\u00a0<strong>\u03b2<\/strong>(beta) = 1 y\u00a0<strong>\u03b7\u00a0<\/strong>(\u00eata) = 15 000 ciclos. Se estima que el usuario m\u00e1s exigente utilizar\u00e1 el producto durante 30 000 ciclos, el menos exigente durante 200 y que el uso medio se situar\u00e1 entre 500 y 2 000, lo que se representa mediante un trapecio. A continuaci\u00f3n, se calcula la tasa de fallo. La tasa de fallo estimada es de 11%<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"964\" height=\"490\" src=\"https:\/\/ellistat.com\/wp-content\/uploads\/fiabilite7.png\" alt=\"\" class=\"wp-image-4607\" srcset=\"https:\/\/ellistat.com\/wp-content\/uploads\/fiabilite7.png 964w, https:\/\/ellistat.com\/wp-content\/uploads\/fiabilite7-300x152.png 300w, https:\/\/ellistat.com\/wp-content\/uploads\/fiabilite7-768x390.png 768w, https:\/\/ellistat.com\/wp-content\/uploads\/fiabilite7-18x9.png 18w\" sizes=\"auto, (max-width: 964px) 100vw, 964px\" \/><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\ud83d\udca1 Es la herramienta de dimensionamiento en la fase de dise\u00f1o, cuando a\u00fan no se dispone de datos de respuesta. Adem\u00e1s, pone de manifiesto algo que va en contra de lo que cabr\u00eda esperar:&nbsp;<strong>Es la dispersi\u00f3n, m\u00e1s que la media, la que determina el fallo<\/strong>. Aumentar la resistencia media de 20 % es menos eficaz que reducir a la mitad su dispersi\u00f3n, ya que son los extremos de la distribuci\u00f3n los que se solapan.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u26a0\ufe0f El resultado depende totalmente de las colas de ambas distribuciones, precisamente all\u00ed donde los datos son m\u00e1s escasos y donde la elecci\u00f3n de la distribuci\u00f3n tiene mayor influencia. Una tasa calculada a partir de hip\u00f3tesis de distribuci\u00f3n no verificadas es un orden de magnitud, no una cifra concreta.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"featured_media":0,"menu_order":40,"template":"","meta":{"_acf_changed":true},"menu-guide-dutilisateur":[36],"class_list":["post-4606","guide-dutilisateur","type-guide-dutilisateur","status-publish","hentry","menu-guide-dutilisateur-9-fiabilite"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Contrainte-r\u00e9sistance - Ellistat<\/title>\n<meta name=\"description\" content=\"Estimez le taux de d\u00e9faillance d&#039;un produit en confrontant sa r\u00e9sistance \u00e0 la contrainte r\u00e9elle d&#039;usage, \u00e0 partir de lois th\u00e9oriques ou de donn\u00e9es terrain.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ellistat.com\/es\/guia-del-usuario\/tension-resistencia\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Contrainte-r\u00e9sistance - 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