{"id":2479,"date":"2017-11-14T09:44:19","date_gmt":"2017-11-14T12:44:19","guid":{"rendered":"https:\/\/www.nachodelatorre.com.ar\/mosconi\/?p=2479"},"modified":"2017-11-14T09:44:19","modified_gmt":"2017-11-14T12:44:19","slug":"respuesta-mecanica-de-un-propulsante-compuesto-bajo-condiciones-operativas","status":"publish","type":"post","link":"https:\/\/www.fie.undef.edu.ar\/ceptm\/?p=2479","title":{"rendered":"Respuesta mec\u00e1nica de un propulsante compuesto bajo condiciones operativas"},"content":{"rendered":"<p>El trabajo de la referencia estudia las propiedades mec\u00e1nicas de un propulsante compuesto con HTPB en condiciones extremas. Describe dos pruebas de ensayos de tracci\u00f3n uniaxiales a varias velocidades de estiramiento (que van desde 0.0005 s<sup>-1<\/sup> a 1,5 s<sup>-1<\/sup>), con temperaturas entre 223 K y 343 K) y varios ensayos de ciclos de fatiga a baja temperatura usando para ello un analizador mec\u00e1nico din\u00e1mico (DMA de sus iniciales en ingl\u00e9s). Los resultados revelan que estr\u00e9s de flujo del propulsor aumenta con la reducci\u00f3n de la temperatura y aumento del grado de deformaci\u00f3n, y la relaci\u00f3n de equivalencia tasa temperatura tensi\u00f3n podr\u00eda describirse incorporando TTSP (principio de superposici\u00f3n tiempo-temperatura) un ecuaci\u00f3n de WLF modificada.<!--more--><\/p>\n<p>OLID rocket motor (SRM) has been widely applied in the military and aerospace fields [1]. The main concern of SRM herein lies in the analysis of structural integrity of grain, which is supposed to obtain the mechanical properties of solid propellants under different working conditions. SRM will suffer high\/low temperatures and overloading at launch, while the mechanical properties under these situations need to be thoroughly understood. HTPB propellant has high specific impulse and excellent mechanical properties, which is projected to be a promising composite propellant.<\/p>\n<p style=\"text-align: right;\"><strong><em><a href=\"http:\/\/www.waset.org\/publications\/10008165\" target=\"_blank\" rel=\"noopener noreferrer\">Continuar leyendo &gt;&gt;<\/a><\/em><\/strong><\/p>\n<p><strong>Fuente:<\/strong>\u00a0<em><a href=\"http:\/\/www.waset.org\/publications\/10008165\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.waset.org<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>El trabajo de la referencia estudia las propiedades mec\u00e1nicas de un propulsante compuesto con HTPB en condiciones extremas. Describe dos pruebas de ensayos de tracci\u00f3n&hellip; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[29,24],"tags":[],"_links":{"self":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts\/2479"}],"collection":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2479"}],"version-history":[{"count":0,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts\/2479\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2479"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2479"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2479"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}