1.0Pavement Sciencehttps://ops.pavement-science.com.aurich600338<blockquote class="wp-embedded-content"><a href="https://ops.pavement-science.com.au/courses/circly-6-0-basic-edition/lessons/how-to-use-austroads-design-mode-6-0/topic/defining-performancefatigue-properties-k-b/">2820 – Defining Performance-Fatigue Properties, k and b.</a></blockquote> <script type='text/javascript'> <!--//--><![CDATA[//><!-- /*! This file is auto-generated */ !function(c,d){"use strict";var e=!1,n=!1;if(d.querySelector)if(c.addEventListener)e=!0;if(c.wp=c.wp||{},!c.wp.receiveEmbedMessage)if(c.wp.receiveEmbedMessage=function(e){var t=e.data;if(t)if(t.secret||t.message||t.value)if(!/[^a-zA-Z0-9]/.test(t.secret)){for(var r,a,i,s=d.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),n=d.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),o=0;o<n.length;o++)n[o].style.display="none";for(o=0;o<s.length;o++)if(r=s[o],e.source===r.contentWindow){if(r.removeAttribute("style"),"height"===t.message){if(1e3<(i=parseInt(t.value,10)))i=1e3;else if(~~i<200)i=200;r.height=i}if("link"===t.message)if(a=d.createElement("a"),i=d.createElement("a"),a.href=r.getAttribute("src"),i.href=t.value,i.host===a.host)if(d.activeElement===r)c.top.location.href=t.value}}},e)c.addEventListener("message",c.wp.receiveEmbedMessage,!1),d.addEventListener("DOMContentLoaded",t,!1),c.addEventListener("load",t,!1);function t(){if(!n){n=!0;for(var e,t,r=-1!==navigator.appVersion.indexOf("MSIE 10"),a=!!navigator.userAgent.match(/Trident.*rv:11\./),i=d.querySelectorAll("iframe.wp-embedded-content"),s=0;s<i.length;s++){if(!(e=i[s]).getAttribute("data-secret"))t=Math.random().toString(36).substr(2,10),e.src+="#?secret="+t,e.setAttribute("data-secret",t);if(r||a)(t=e.cloneNode(!0)).removeAttribute("security"),e.parentNode.replaceChild(t,e)}}}}(window,document); //--><!]]> </script><iframe sandbox="allow-scripts" security="restricted" src="https://ops.pavement-science.com.au/courses/circly-6-0-basic-edition/lessons/how-to-use-austroads-design-mode-6-0/topic/defining-performancefatigue-properties-k-b/embed/" width="600" height="338" title="“2820 – Defining Performance-Fatigue Properties, k and b.” — Pavement Science" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe>Generally most performance models may be represented graphically by a plot of tolerable strain versus load repetitions (generally by a straight line of ‘best fit’ on a log-log plot). CIRCLY represents models in the form: where N is the predicted life (repetitions) k is a material constant b is the damage exponent of the material ε is the induced strain (dimensionless strain) Log-log relationships can be readily converted to the above form. Please note carefully: Performance relationships published by Austroads or State Road Authorities are usually expressed in terms of microstrain (denoted by με) whereas CIRCLY expects the relationships to be expressed in terms of unitless strain (ε). The parameter μ is 106. You can convert a Performance relationship expressed in…https://ops.pavement-science.com.au/wordpress/wp-content/uploads/sites/2/2015/07/Performance-Equation.jpg