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[求助]
ansys模擬樁土的2d拉拔塑性區(qū)問題
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采用接觸分析，但為何塑性區(qū)集中一部分，而不是一個貫通的區(qū)域。請大神給我點思路建議~~很急很關鍵，謝謝了 1006.png |
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本帖內(nèi)容被屏蔽 |
2樓2016-01-10 07:27:44
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您能給我看一下命令嗎，我想得到一個貫通的塑性區(qū)，初學階段才疏學淺，始終辦不到，拜托了 finish /clear /PREP7 ! KeyPoints K,2,0.03,0 K,259,3.70E-02,-1.9E-02 K,260,3.68E-02,-1.73736000000001E-02 K,261,3.66999999998281E-02,-1.64644499999999E-02 K,262,3.66999999998281E-02,-1.56550500000001E-02 K,263,3.68E-02,-.0147573 K,264,.0367,-1.17477000000001E-02 K,265,.0366,-1.05079499999999E-02 K,266,.0367,-8.38755000000015E-03 K,267,3.7E-02,-7.24755000000005E-03 K,268,3.73E-02,-.0056259 K,269,3.79E-02,-2.73029999999994E-03 K,270,3.82E-02,-8.32200000000057E-04 K,272,.1,0 K,273,.1,-1.9E-02 K,274,0.03,-1.9E-02 K,282,3.82E-02,0 K,159,3.70E-02,-1.9E-02 K,160,3.68E-02,-1.73736000000001E-02 K,161,3.66999999998281E-02,-1.64644499999999E-02 K,162,3.66999999998281E-02,-1.56550500000001E-02 K,163,3.68E-02,-.0147573 K,164,.0367,-1.17477000000001E-02 K,165,.0366,-1.05079499999999E-02 K,166,.0367,-8.38755000000015E-03 K,167,3.7E-02,-7.24755000000005E-03 K,168,3.73E-02,-.0056259 K,169,3.79E-02,-2.73029999999994E-03 K,170,3.82E-02,-8.32200000000057E-04 K,182,3.82E-02,0 LSTR, 260, 259 LSTR, 261, 260 LSTR, 262, 261 LSTR, 263, 262 LSTR, 264, 263 LSTR, 265, 264 LSTR, 266, 265 LSTR, 267, 266 LSTR, 268, 267 LSTR, 269, 268 LSTR, 270, 269 LSTR, 282, 270 LSTR, 282,2 LSTR, 274,2 LSTR, 273,272 LSTR, 274,259 LSTR, 160, 159 LSTR, 161, 160 LSTR, 162, 161 LSTR, 163, 162 LSTR, 164, 163 LSTR, 165, 164 LSTR, 166, 165 LSTR, 167, 166 LSTR, 168, 167 LSTR, 169, 168 LSTR, 170, 169 LSTR, 182, 170 LSTR, 182, 272 LSTR, 273,159 allsel,all,all LSEL,S,LINE,,1,12 LCOMB,ALL ALLSEL,ALL LSEL,S,LINE,,17,28 LCOMB,ALL ALLSEL,ALL numcmp,all ALLSEL,ALL k,9,3.70E-02,-0.6000000 k,10,3.82E-02,0.300000 k,11,0.6,-0.6000000 k,12,0.6,0.300000 LSTR, 9,2 LSTR, 10,3 LSTR, 10,12 LSTR, 12,11 LSTR, 9,11 allsel,all,all a,2,3,5,6 a,7,1,8,4 lsel,S,line,,7,13 lsel,a,line,,4 cm,YUTI,line al,YUTI !土體參數(shù) E_1=10E6 U_1=0.35 DENS_1=1900 C_1=30E3 FI_1=12 DFI_1=6 MP,EX,1,E_1 MP,PRXY,1,U_1 MP,DENS,1,DENS_1 TB,DP,1 TBDATA,1,C_1,FI_1,DFI_1 MP,MU,1,0.2 !錨固體參數(shù) E_2=30E10 U_2=0.2 DENS_2=2500 MP,EX,2,E_2 MP,PRXY,2,U_2 MP,DENS,2,DENS_2 ET,1,82 KEYOPT,1,3,1 ET,3,targe169 ET,4,conta172 KEYOPT,4,3,1 KEYOPT,4,10,2 KEYOPT,4,8,2 keyopt,4,12,2 !界面層接觸面實常數(shù) R,6 lsel,s,line,,1,6,5 LESIZE,ALL,,,100 lsel,s,line,,2,5 LESIZE,ALL,,,15 lsel,s,line,,7 LESIZE,ALL,,,60,2 lsel,s,line,,8 LESIZE,ALL,,,60,0.5 lsel,s,line,,9 LESIZE,ALL,,,100,0.05 lsel,s,line,,10 LESIZE,ALL,,,80,0.05 lsel,s,line,,11,13 LESIZE,ALL,,,50 ASEL,S,AREA,,1 AATT,1,,1 mshkey,0 mshape,1,2D AMESH,ALL ASEL,S,AREA,,2 AATT,2,,1 mshkey,0 mshape,1,2D AMESH,ALL ASEL,S,AREA,,3 AATT,1,,1 mshkey,0 mshape,1,2D AMESH,ALL allsel,all,all !創(chuàng)建目標面（錨固體） lsel,s,line,,1 nsll,s,1 esln,s,0 type,3 real,6 mat,2 esurf allsel,all,all !創(chuàng)建接觸面（界面層） lsel,s,line,,6 nsll,s,1 esln,s,0 type,4 real,6 mat,1 esurf allsel,all,all LSEL,S,LINE,,11,13,2 NSLL,S D,ALL,Uy LSEL,S,LINE,,12 NSLL,S D,ALL,Ux LSEL,s,,,2 NSLL,S SF,all,PRES,-4e4 LSEL,s,,,3 NSLL,S SF,all,PRES,1e4 allsel,all,all /solu antype,static nlgeom,on autots,on time,1 NSUBST,200 OUTRES,ALL,ALL NROPT,full,,off NROPT,unsym,,off solve allsel,all,all ASEL,S,AREA,,1,2 ESLA,S |
3樓2016-01-10 09:08:49
頂一下 |
4樓2016-01-11 09:21:06
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請問下，你可以幫我解決下這個問題嗎 1.一般工程勘察里面給出的土的壓縮模量，壓縮模量與變形模量之間有一個轉(zhuǎn)換公式，而彈性模量的取值，往往說法不一，在網(wǎng)上找的資料有的說彈性模量取的是壓縮模量的2-5倍，但是又不確定。 2. 在（ANSYS用于模擬上部結(jié)構(gòu)與地基基礎作用中土的彈性模量的影響）這個文章中，提到說在土與基礎共同作用分析中，彈性模量就是變形模量； 在這個資料里http://wenku.baidu.com/view/1b2bd3ea6294dd88d0d26bfc.html 也說到，"在很多數(shù)值模擬軟件中，除非特別說明，一般說的彈性模量均指變形模量，即土體在無側(cè)限的條件下的彈性模量。 " 請問下，到底ansys中輸入的是土的變形模量還是彈性模量呢？？ |
5樓2016-01-11 19:17:10
6樓2016-01-11 19:54:28
7樓2016-01-12 00:21:15
8樓2016-01-12 13:22:09
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