{"id":14463,"date":"2017-07-21T08:20:13","date_gmt":"2017-07-21T07:20:13","guid":{"rendered":"https:\/\/www.cetestgroup.com\/?page_id=14463"},"modified":"2022-12-14T13:58:08","modified_gmt":"2022-12-14T13:58:08","slug":"structural-health-monitoring","status":"publish","type":"page","link":"https:\/\/www.cetestgroup.com\/us\/rail-tests\/special-on-track-tests\/structural-health-monitoring\/","title":{"rendered":"Structural Health Monitoring"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row][vc_column]<div class=\"ult-spacer spacer-69dc8b5c16f7f\" data-id=\"69dc8b5c16f7f\" data-height=\"30\" data-height-mobile=\"20\" data-height-tab=\"20\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div><div class=\"dfd-heading-shortcode\"><div class=\"dfd-heading-module-wrap  text-center style_01 dfd-heading-69dc8b5c16fef dfd-disable-resposive-headings\" id=\"dfd-heading-69dc8b5c16fef\" ><div class=\"inline-block\"><div class=\"dfd-heading-module\"><h6 class=\"widget-title dfd-title \" style=\"font-family:PT Sans Narrow; font-weight:400; font-style:normal; font-size: 20px; color: #25bdd5 !important; line-height: 25px; \">CETEST is a specialist in extensometric on-track tests for determining stress levels in different components (trucks, car body frames or specific elements) during normal service. This yields information which complements the static tests and is highly valuable for fatigue failure analysis or for simplified homologation due to slight modifications on the car body during the vehicle\u2019s lifetime.<\/h6><div class=\"dfd-heading-delimiter\"><\/div><\/div><\/div><\/div><script type=\"text\/javascript\">\r\n\t\t\t\t\t\t\t\t\t(function($) {\r\n\t\t\t\t\t\t\t\t\t\t$(\"head\").append(\"<style>.dfd-heading-69dc8b5c16fef.dfd-heading-module-wrap .dfd-heading-module .dfd-heading-delimiter {border-bottom-style:solid;border-bottom-width:1px;width:100px;border-bottom-color:#dddddd;}.dfd-heading-69dc8b5c16fef.dfd-heading-module-wrap .dfd-heading-module .dfd-heading-delimiter {margin-top:20px;margin-bottom:20px;}<\/style>\");\r\n\t\t\t\t\t\t\t\t\t})(jQuery);\r\n\t\t\t\t\t\t\t\t<\/script><\/div><div class=\"ult-spacer spacer-69dc8b5c170c1\" data-id=\"69dc8b5c170c1\" data-height=\"30\" data-height-mobile=\"20\" data-height-tab=\"20\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div>[vc_row_inner][vc_column_inner]<div id=\"dfd-carousel-69dc8b5c17136\" class=\"dfd-carousel-wrapper\"><div class=\"dfd-carousel-module-wrapper  dfd-carousel-horizontal dfd-arrows_aside2 dfdfillsquare dfd-arrows-style_4 dfd-arrows-enabled dfd-dots-enabled\" ><div class=\"dfd-carousel\">[vc_single_image image=&#8221;16623&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221;][vc_single_image image=&#8221;16624&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221;][vc_single_image image=&#8221;16625&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221;]<\/div><a href=\"#\" class=\"dfd-slider-control prev\" title=\"Previous slide\"><i class=\"dfd-added-font-icon-left-open2\"><\/i><\/a><a href=\"#\" class=\"dfd-slider-control next\" title=\"Next slide\"><i class=\"dfd-added-font-icon-right-open2\"><\/i><\/a><\/div>\t\t\t\t<script type=\"text\/javascript\">\r\n\t\t\t\t\t(function($) {\r\n\t\t\t\t\t\t\"use strict\";\r\n\t\t\t\t\t\tvar $carousel = $('#dfd-carousel-69dc8b5c17136').find('.dfd-carousel');\r\n\t\t\t\t\t\t$(document).ready(function() {\r\n\t\t\t\t\t\t\tvar $initialized = ($('body').hasClass('page-template-tmp-side-by-side')) ? $carousel.not('.slick-initialized') : $carousel;\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t$carousel.siblings('.dfd-slider-control.prev').click(function(e) {\r\n\t\t\t\t\t\t\t\te.preventDefault();\r\n\t\t\t\t\t\t\t\t$carousel.eq(0).slick('slickPrev');\r\n\t\t\t\t\t\t\t});\r\n\t\t\t\t\t\t\t$carousel.siblings('.dfd-slider-control.next').click(function(e) {\r\n\t\t\t\t\t\t\t\te.preventDefault();\r\n\t\t\t\t\t\t\t\t$carousel.eq(0).slick('slickNext');\r\n\t\t\t\t\t\t\t});\r\n\t\t\t\t\t\t\t$initialized.slick({arrows: false,dotsClass: 'dfd-slick-dots',slidesToScroll: 1,autoplay: true,autoplaySpeed: 5000,dots: true,customPaging: function(slider, i) {\r\n\t\t\t\t\t\t\t\t\treturn '<span data-role=\"none\" role=\"button\" aria-required=\"false\" tabindex=\"0\"><\/span>';\r\n\t\t\t\t\t\t\t\t},infinite: true,slidesToShow: 1,speed: 300,swipe: true,draggable: true,adaptiveHeight: true,responsive: [\r\n\t\t\t\t\t\t\t{\r\n\t\t\t\t\t\t\t\tbreakpoint: 1024,\r\n\t\t\t\t\t\t\t\tsettings: {\r\n\t\t\t\t\t\t\t\t\tslidesToShow: 1,\r\n\t\t\t\t\t\t\t\t\tslidesToScroll: 1,\r\n\t\t\t\t\t\t\t\t}\r\n\t\t\t\t\t\t\t},\r\n\t\t\t\t\t\t\t{\r\n\t\t\t\t\t\t\t\tbreakpoint: 800,\r\n\t\t\t\t\t\t\t\tsettings: {\r\n\t\t\t\t\t\t\t\t\tslidesToShow: 1,\r\n\t\t\t\t\t\t\t\t\tslidesToScroll: 1,\r\n\t\t\t\t\t\t\t\t}\r\n\t\t\t\t\t\t\t},\r\n\t\t\t\t\t\t\t{\r\n\t\t\t\t\t\t\t\tbreakpoint: 480,\r\n\t\t\t\t\t\t\t\tsettings: {\r\n\t\t\t\t\t\t\t\t\tslidesToShow: 1,\r\n\t\t\t\t\t\t\t\t\tslidesToScroll: 1,\r\n\t\t\t\t\t\t\t\t}\r\n\t\t\t\t\t\t\t},]});\r\n\t\t\t\t\t\t\t$(\"head\").append(\"<style>#dfd-carousel-69dc8b5c17136 > .dfd-carousel-module-wrapper > .dfd-carousel > .slick-list > .slick-track > .dfd-item-wrap > .cover {padding: 10px;}#dfd-carousel-69dc8b5c17136 {margin: -10px;}<\/style>\")\t\t\t\t\t\t});\r\n\t\t\t\t\t})(jQuery);\r\n\t\t\t\t<\/script>\r\n            <\/div><div class=\"ult-spacer spacer-69dc8b5c171ba\" data-id=\"69dc8b5c171ba\" data-height=\"30\" data-height-mobile=\"20\" data-height-tab=\"20\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div>[\/vc_column_inner][\/vc_row_inner][vc_row_inner][vc_column_inner][vc_column_text]CETEST measures the stress levels and determines the global stress history that the piece will experience during its operational life. This history is used to estimate the risk of fatigue failure by means of the cumulative damage method, also known as Miner\u2019s and Goodman&#8217;s rules. This calculation involves comparing the measured stress levels against an S-N curve (in compliance with standards EN 1999-1-3, EN 1993-1-9 and ERRI B12\/RP60).[\/vc_column_text][\/vc_column_inner][\/vc_row_inner]<div class=\"ult-spacer spacer-69dc8b5c171cd\" data-id=\"69dc8b5c171cd\" data-height=\"30\" data-height-mobile=\"20\" data-height-tab=\"20\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div>[vc_row_inner][vc_column_inner width=&#8221;1\/2&#8243;]<div class=\"ult-spacer spacer-69dc8b5c171db\" data-id=\"69dc8b5c171db\" data-height=\"20\" data-height-mobile=\"20\" data-height-tab=\"20\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div>[vc_column_text]An on-track fatigue analysis provides information to complemented data obtained during static tests (e.g., identification of slightly damped modes associated with resonances). Real load scenarios created during this test can also be used to validate the design when the standards are too restrictive.[\/vc_column_text]<div class=\"ult-spacer spacer-69dc8b5c171e7\" data-id=\"69dc8b5c171e7\" data-height=\"20\" data-height-mobile=\"20\" data-height-tab=\"20\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div><div id=\"dfd-announce-69dc8b5c171fc-384\" class=\"dfd-announce-module-wrap align-left no_full_bg_class  style-3 layout-1\" ><div class=\"dfd-announce-module\"><div class=\"module-icon\" ><i class = \"dfd-icon-train_1\"><\/i><\/div><div class=\"module-text\" style=\"font-family:PT Sans; font-weight:400; font-style:normal; font-size: 18px; color: #25bdd5 !important; line-height: 22px; font-weight:bold; \">CETEST has extensive experience conducting these tests in all kinds of vehicle across the world.<\/div><\/div><\/div><div class=\"ult-spacer spacer-69dc8b5c1723b\" data-id=\"69dc8b5c1723b\" data-height=\"20\" data-height-mobile=\"20\" data-height-tab=\"20\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div>[vc_column_text]In the case of fatigue failure, the information derived from this type of test could be crucial in determining the nature of the problem and potential solutions.<\/p>\n<p>CETEST has also used this test to validate slight modifications in the car body (modification of supports so that equipment can be changed, for example).[\/vc_column_text][\/vc_column_inner][vc_column_inner width=&#8221;1\/2&#8243; dfd_column_responsive_enable=&#8221;dfd-column-responsive-enable&#8221; css=&#8221;.vc_custom_1509439216469{padding-right: 5% !important;padding-left: 5% !important;}&#8221; responsive_styles=&#8221;border_right_desktop:0|padding_left_tablet:0|padding_right_tablet:0|padding_left_mobile:0|padding_right_mobile:0&#8243;]<div class=\"ult-spacer spacer-69dc8b5c17248\" data-id=\"69dc8b5c17248\" data-height=\"20\" data-height-mobile=\"20\" data-height-tab=\"20\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div>[vc_single_image image=&#8221;16627&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221;][\/vc_column_inner][\/vc_row_inner][vc_row_inner][vc_column_inner dfd_column_responsive_enable=&#8221;dfd-column-responsive-enable&#8221; responsive_styles=&#8221;padding_left_desktop:10|padding_right_desktop:10&#8243;]<div class=\"ult-spacer spacer-69dc8b5c17253\" data-id=\"69dc8b5c17253\" data-height=\"30\" data-height-mobile=\"30\" data-height-tab=\"30\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div>[vc_column_text]CETEST has extensive experience conducting these tests in all kinds of vehicle across the world. We offer technical support to define the most critical measurement points, as well as carrying out the actual test and assessing the fatigue performance of the tested component. Furthermore, our ample experience in this sort of measurement means we can provide the best instrumentation layout to ensure strain gauge durability and minimum instrumentation time.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner]<div class=\"ult-spacer spacer-69dc8b5c1725c\" data-id=\"69dc8b5c1725c\" data-height=\"60\" data-height-mobile=\"20\" data-height-tab=\"30\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div>[\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column][vc_row_inner][vc_column_inner][\/vc_column_inner][\/vc_row_inner][vc_row_inner][vc_column_inner][vc_column_text]CETEST measures the stress levels and determines the global stress history that the piece will experience during its operational life. This history is used to estimate the risk of fatigue<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":14460,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"tmp-page-right-sidebar.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-14463","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Structural Health Monitoring of rail vehicles and components - CETEST USA<\/title>\n<meta name=\"description\" content=\"CETEST is a specialist in extensometric on-track tests for determining stress levels in different components (bogies, car body frames or specific elements) during normal service. 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