Workbench彈塑性有限元分析無(wú)法收斂? 50
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最近在用workbench做彈塑性有限元分析,在Multilinear Isotropic Hardening 中輸入了應(yīng)力應(yīng)變曲線(xiàn),算出了結(jié)果,發(fā)現(xiàn)塑形應(yīng)變和總變形過(guò)大。 仔細(xì)檢查后發(fā)現(xiàn),在輸入應(yīng)力應(yīng)變曲線(xiàn)時(shí),我的應(yīng)變數(shù)據(jù)的單位都少了*0.001,導(dǎo)致應(yīng)力應(yīng)變曲線(xiàn)中所有的應(yīng)變數(shù)據(jù)都大了1000倍。 我將應(yīng)變都改成正確的值,其余的所有設(shè)置都沒(méi)有變動(dòng)。但是再次計(jì)算時(shí)卻出現(xiàn)了無(wú)法收斂的問(wèn)題,請(qǐng)問(wèn)這是什么原因呢? (解算信息中一直警告:Plasticity algorithm did not converge for element number ** with material number *. 解算失敗后提示錯(cuò)誤:The solver engine was unable to converge on a solution of a nonlinear problem.)




















