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<title><![CDATA[An adaptive method for the determination of the order of element for acquiring the desired accuracy in 2D elastostatic FEM analysis.pdf(1.28 MB)]]></title>
<link>http://www.isheu.com/data_757_3.aspx</link>
<pubDate>Sat, 05 Jul 2008 03:50:10 GMT</pubDate>
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<description><![CDATA[Abstract&amp;lt;BR&amp;gt;An燼daptive&#29193;ethod爁or爐he燿etermination&#29195;f爐he&#29195;rder&#29195;f&#29184;lement?or&#29184;lement&#29195;rder)爓as燿eveloped爁or爐he爁inite&#29184;lement燼nalysis&#29195;f?D&amp;lt&nbsp;;BR&amp;gt;elastostatic爌roblems.&#29150;ere,爐he&#29195;rder&#29195;f&#29184;lement&#29193;eans爐he&#29195;rder&#29195;f爐he爌olynomial爁unction爐hat&#29188;nterpolates爐he燿isplacement燿istribution&#29188;n&amp;lt;BR&amp;gt;the&#29184;lement&nbsp;.燭his&#29193;ethod爓as燽ased&#29195;n燼cquiring爐he燿esired燼ccuracy爁or&#29184;ach爁inite&#29184;lement.燜rom爐he爊umerical&#29184;xperiments,爐he&amp;lt;BR&amp;gt;relationship爅&#29220;爇?=p&#21753;爓as燿educed,爓here爅&#29188;s爐he&#29184;rror&#29195;f爐he&#29198;esult&#29195;f爐he爁inite&#29184;lement燼nalysis&#29198;elative爐o爐he&#29184;xact&#29202;alue,爌&#29188;s爐he&amp;lt;BR&amp;gt;order&#29195;f&#29184;lement,燼nd爇燼nd燽燼re燾onstants.&#29143;pplying爐his&#29198;elationship爐o爐he爐wo&#29198;esults&#29195;f燾omputations爓ith燿ifferent&#29195;rders&#29195;f&#29184;lement,爐he&amp;lt;BR&amp;gt;&nbsp;order&#29195;f&#29184;lement爁or爐he爐hird燼nalysis爓as燿educed.&#29143;燾omputer爌rogram&#29201;sing爐his燼daptive燿etermination&#29193;ethod爁or爐he&#29195;rder&#29195;f&#29184;lement&amp;lt;BR&amp;gt;was燿eveloped燼nd燼pplied爐o&#29199;everal?D&#29184;lastostatic爌roblems&#29195;f&#29202;arious&#29199;hapes.燭he&#29201;sefulness&#29195;f爐he&#29193;ethod爓as&#29188;llustrated燽y爐hese&amp;lt;BR&amp;gt;application&#29198;esults.爍?001燛lsevier燬cience&#29155;td.&#29143;ll&#29198;ights&#29198;eserved.]]></description>
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<title><![CDATA[ECAP等通道轉角擠壓過程的數值模擬研究.pdf(217.74 KB)]]></title>
<link>http://www.isheu.com/data_36949_3.aspx</link>
<pubDate>Thu, 18 Dec 2008 10:51:22 GMT</pubDate>
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<description><![CDATA[等通道轉角擠壓技術（ECAP）是一種利用純剪切變形細化晶粒的大塑性變形加工方法。它能夠顯著地細化晶粒，獲得超細晶結構而成為當前國際材料科學研究的熱點。本文應用大型非線性有限元軟件MSC.Marc對ECAP過程進行了模擬仿真。分析模具不同內外角下的應力、應變的變化分佈。深入研究了ECAP擠壓的特點。]]></description>
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