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            <title>
									Drucker prager softening - General				            </title>
            <link>https://geoxpm.com/community/general/drucker-prager-softening/</link>
            <description>GeoXPM Discussion Board</description>
            <language>en-US</language>
            <lastBuildDate>Wed, 10 Jun 2026 00:33:53 +0000</lastBuildDate>
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							                    <item>
                        <title>RE: Drucker prager softening</title>
                        <link>https://geoxpm.com/community/general/drucker-prager-softening/#post-108</link>
                        <pubDate>Mon, 23 Jun 2025 06:53:28 +0000</pubDate>
                        <description><![CDATA[@madelestin They are the softening parameters for the cohesion
c = c_0 - a*c_0*(1-exp(-b*kappa))
where kapa is the equivalent accumulated plastic shear strain]]></description>
                        <content:encoded><![CDATA[<p>@madelestin They are the softening parameters for the cohesion</p>
<p>c = c_0 - <strong>a</strong>*c_0*(1-exp(-<strong>b</strong>*kappa))</p>
<p>where kapa is the equivalent accumulated plastic shear strain</p>]]></content:encoded>
						                            <category domain="https://geoxpm.com/community/general/">General</category>                        <dc:creator>Tien Nguyen (Smith)</dc:creator>
                        <guid isPermaLink="true">https://geoxpm.com/community/general/drucker-prager-softening/#post-108</guid>
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				                    <item>
                        <title>Drucker prager softening</title>
                        <link>https://geoxpm.com/community/general/drucker-prager-softening/#post-106</link>
                        <pubDate>Thu, 19 Jun 2025 11:11:56 +0000</pubDate>
                        <description><![CDATA[May i know what is the formulation or the criterion used by Geoxpm for drucker prager softening, especially for the coefficient a and b.
&nbsp;Drucker-prager-softening.png]]></description>
                        <content:encoded><![CDATA[<p>May i know what is the formulation or the criterion used by Geoxpm for drucker prager softening, especially for the coefficient a and b.</p>
<div id="wpfa-4094" class="wpforo-attached-file"><a class="wpforo-default-attachment" href="//geoxpm.com/wp-content/uploads/wpforo/default_attachments/1750331516-Drucker-prager-softening.png" target="_blank" title="Drucker-prager-softening.png"><i class="fas fa-paperclip"></i>&nbsp;Drucker-prager-softening.png</a></div>]]></content:encoded>
						                            <category domain="https://geoxpm.com/community/general/">General</category>                        <dc:creator>madelestin</dc:creator>
                        <guid isPermaLink="true">https://geoxpm.com/community/general/drucker-prager-softening/#post-106</guid>
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