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shijian2222金虫 (小有名气)
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[求助]
一个隧道底板加锚杆的算例，加上锚杆不收敛，请帮我看下命令流
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锚杆用的link1，生死单元开挖模拟分了三步，第三步激活锚杆后就不收敛了，请帮我看一下，建模是cad导入的iges文件，附件里有建模后文件，可直接使用，命令流如下： /PREP 7 !ROCK E_1=5e9 U_1=0.4 DENS_1=2620 C_1=1e7 FI_1=38 MP,EX,1,E_1 MP,PRXY,1,U_1 MP,DENS,1,DENS_1 TB,DP,1 TBDATA,1,C_1,FI_1 !ANCHOR E_2=17E10 U_2=0.3 DENS_2=7900 MP,EX,2,E_2 MP,PRXY,2,U_2 MP,DENS,2,DENS_2 !LINER E_3=21e9 U_3=0.2 DENS_3=2900 MP,EX,3,E_3 MP,PRXY,3,U_3 MP,DENS,3,DENS_3 !bROCK MP,EX,4,E_1 MP,PRXY,4,U_1 MP,DENS,4,DENS_1 TB,DP,4 TBMODIF,1,1,C_1 TBMODIF,1,2,FI_1 ET,1,42 KEYOPT,1,3,2 et,2,3 keyopt,2,6,1 ET,3,1 r,1,0.2,0.2/12,0.2 r,2,3.14*(25e-3/2)**2 !GUI生成面和组，A_ROCK1 A_ROCK2 B_ROCK C_ROCK D_LINE E_ANCHOR ! A_ROCK1是外部原岩，A_ROCK2是巷道周边原岩， CMSEL,S,anchor,LINE LATT,2,2,3 mshkey,0 LESIZE,ALL,0.1 mshape,1,2D LMESH,ALL CMSEL,S,beam,LINE LATT,3,1,2 mshkey,0 LESIZE,ALL,0.1 mshape,1,2D LMESH,ALL CMSEL,S,A_ROCK2,AREA AATT,1,,1 mshkey,0 ESIZE,0.8 mshape,1,2D AMESH,ALL CMSEL,S,A_ROCK1,AREA AATT,1,,1 mshkey,0 ESIZE,2 mshape,0,2D AMESH,ALL CMSEL,S,B_ROCK,AREA AATT,4,,1 mshkey,0 ESIZE,0.5 mshape,1,2D AMESH,ALL NSEL,S,LOC,Y,-45 D,ALL,ALL LSEL,S,LINE,,22,26,2 SFL,ALL,PRES,2.8E6 LSEL,S,LINE,,27,31,2 dl,all,,ux lsel,s,line,,19,23,4 lsel,a,line,,37 dl,all,,ux ALLS /SOLU ANTYPE,STATIC NLGEOM,ON NROPT,FULL OUTERS,ALL,ALL NSUB,6,10 TIME,1 ACEL,,9.8 ESEL,S,MAT,,2,3,1 EKILL,ALL ESEL,ALL ESEL,S,LIVE NSLE,S NSEL,INVE D,ALL,ALL ALLS SOLVE SAVE,STEP1z2,DB TIME,2 ESEL,S,MAT,,1,4,3 esel,u,mat,,1 EKILL,ALL ESEL,ALL ESEL,S,LIVE NSLE,S NSEL,INVE D,ALL,ALL ALLS SOLVE SAVE,STEP2z2,DB TIME,3 ESEL,S,MAT,,2,3,1 EALIVE,ALL NSLE,S DDELE,ALL,ALL ESEL,ALL ESEL,S,LIVE NSLE,S NSEL,INVE D,ALL,ALL ALLS SOLVE SAVE,STEP3z2,DB |
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2015-09-11 21:03:18, 31.22 K
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