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[求助]
ansys 钢管混凝土模拟 为什么算几步就算不下去了？附命令流 已有1人参与
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/PREP7 ET,1,SOLID65,,,,,,,1 ET,2,SOLID45 K,1 K,2,0.021,0,0 K,3,0.024,0,0 K,4,0.087,0,0 K,5,0.09,0,0 K,6,0,0.54,0 L,1,2 L,2,3 L,3,4 L,4,5 L,1,6 AROTAT,2,3,4,,,,1,6 ALLSEL,ALL VDRAG,ALL,,,,,,5 MP,EX,1,2.0e11 !外层钢管的材料属性 mp,dens,1,7850 mp,prxy,1,0.3 tb,bkin,1 tbdata,1,257.9e6,0 MP,EX,2,2.0e11 !内层钢管的材料属性 mp,dens,2,7850 mp,prxy,2,0.3 tb,bkin,2 tbdata,1,396.1e6,0 mp,ex,3,2.0e10 mp,prxy,3,0.173 mp,dens,3,1800 tb,mkin,3 tbtemp,,strain tbdata,,0.0005,0.001,0.002,0.004,0.005, tbtemp,0.0 tbdata,,10.0e6,19.2e6,32.5e6,41.6e6,41.6e6 tb,concr,3,3 tbdata,,0.4,0.9,,-1 *do,i,1,4,1 vglue,1+3*(i-1),2+3*(i-1) vglue,2+3*(i-1),3+3*(i-1) *enddo vsel,s,volue,,1,10,3 vatt,2,,2 vsel,all vsel,s,volue,,3,12,3 vatt,1,,2 vsel,all VSEL,s ,volue , ,2,11,3 vatt,3,,1 vsel,all ESIZE,0.012,0 MSHAPE,0,3D MSHKEY,1 VSEL,s ,volue , ,2,11,3 VMESH,all vsel,all ESIZE,0,1 MSHAPE,0,3D MSHKEY,1 VSEL,s ,volue , ,1,10,3 vsel,a,volue,,3,12,3 VMESH,all vsel,all FLST,4,432,1,ORDE,60 FITEM,4,14 FITEM,4,59 FITEM,4,-70 FITEM,4,605 FITEM,4,650 FITEM,4,-654 FITEM,4,887 FITEM,4,932 FITEM,4,-942 FITEM,4,1432 FITEM,4,-1436 FITEM,4,1712 FITEM,4,-1766 FITEM,4,4199 FITEM,4,-4210 FITEM,4,4745 FITEM,4,4790 FITEM,4,-4794 FITEM,4,5026 FITEM,4,-5036 FITEM,4,5576 FITEM,4,-5630 FITEM,4,8063 FITEM,4,-8074 FITEM,4,8609 FITEM,4,8654 FITEM,4,-8658 FITEM,4,8890 FITEM,4,-8900 FITEM,4,9440 FITEM,4,-9494 FITEM,4,11926 FITEM,4,-11936 FITEM,4,12432 FITEM,4,-12442 FITEM,4,12982 FITEM,4,-13036 FITEM,4,15470 FITEM,4,15515 FITEM,4,-15526 FITEM,4,16056 FITEM,4,16113 FITEM,4,16158 FITEM,4,-16168 FITEM,4,16665 FITEM,4,16710 FITEM,4,-16720 FITEM,4,17206 FITEM,4,17262 FITEM,4,-17272 FITEM,4,17769 FITEM,4,17814 FITEM,4,-17824 FITEM,4,18310 FITEM,4,18366 FITEM,4,-18376 FITEM,4,18872 FITEM,4,-18882 FITEM,4,19378 FITEM,4,-19388 CP,1,UY,P51X acel,,9.8 allsel,all finish /solu nsel,s,loc,y,0 d,all,all allsel nsel,s,loc,y,0.54 d,all,ux d,all,uz allsel antype,static outres,basic,all !输出选项 outpr,basic,all !窗口输出，这个没什么影响 autots,on !自动计算时间步长 nlgeom,on !打开是大变形，非线性 outres,all,all !输出所有子步结果 time,1 allsel d,14,uy,-0.01 nsubst,300 !荷载子步 neqit,20 eqslv,-1 ncnv,1 !终止分析选项，终止分析且退出程序 lnsrch,on !线性搜索，使计算稳定 cnvtol,u,,0.015 allsel solve /post1 allsel plnsol,s,eqv,0,1 !应力云图 allsel vsel,s,volue,,1,10,3 eslv,r plnsol,s,eqv,0,1 !内钢管应力图 allsel VSEL, , , ,1 eslv,r plnsol,s,eqv,0,1 !内钢管剖面应力图 allsel vsel,s,volue,,3,12,3 eslv,r plnsol,s,eqv,0,1 !外钢管应力图 allsel VSEL, , , ,3 eslv,r plnsol,s,eqv,0,1 !外钢管剖面应力图 allsel VSEL,s ,volue , ,2,11,3 eslv,r plnsol,s,eqv,0,1 !混凝土应力图 allsel VSEL, , , ,2 eslv,r plnsol,s,eqv,0,1 !混凝土剖面应力图 /post26 !极限承载力（耦合提法） nsol,2,14,u,y rforce,3,14,f,y /axlab,x,deflection(m) /axlab,y,totle load(N)> /xrange,0 /yrange,0 prod,2,,,,,,,-1 prod,3,,,,,,,-1 xvar,2 plvar,3 出现以下警告和错误 提结果大体符合但不完整，得不到位移荷载曲线平滑段，只计算几步就不算了 *** WARNING *** CP = 302.377 TIME= 16:38:57 There are 3 small equation solver pivot terms. *** WARNING *** CP = 322.407 TIME= 16:39:18 There are 7 small equation solver pivot terms. *** WARNING *** CP = 343.031 TIME= 16:39:38 There are 22 small equation solver pivot terms. *** WARNING *** CP = 364.684 TIME= 16:40:00 There are 112 small equation solver pivot terms. *** WARNING *** CP = 753.188 TIME= 16:46:32 There are 2 small equation solver pivot terms. *** WARNING *** SUPPRESSED MESSAGE CP = 779.787 TIME= 16:46:59 There are 3 small equation solver pivot terms. *** WARNING *** SUPPRESSED MESSAGE CP = 803.234 TIME= 16:47:23 There are 18 small equation solver pivot terms. *** WARNING *** SUPPRESSED MESSAGE CP = 864.074 TIME= 16:48:24 There are 2 small equation solver pivot terms. *** WARNING *** SUPPRESSED MESSAGE CP = 909.751 TIME= 16:49:10 There are 7 small equation solver pivot terms. *** WARNING *** SUPPRESSED MESSAGE CP = 932.855 TIME= 16:49:33 There are 31 small equation solver pivot terms. *** WARNING *** SUPPRESSED MESSAGE CP = 1014.865 TIME= 16:50:56 There are 4 small equation solver pivot terms. *** WARNING *** SUPPRESSED MESSAGE CP = 1085.361 TIME= 16:52:07 There are 1 small equation solver pivot terms. *** WARNING *** SUPPRESSED MESSAGE CP = 1110.540 TIME= 16:52:32 There are 11 small equation solver pivot terms. *** WARNING *** SUPPRESSED MESSAGE CP = 1136.358 TIME= 16:52:58 There are 107 small equation solver pivot terms. *** WARNING *** SUPPRESSED MESSAGE CP = 1170.304 TIME= 16:53:32 There are 4 small equation solver pivot terms. *** WARNING *** SUPPRESSED MESSAGE CP = 1198.244 TIME= 16:54:00 There are 12 small equation solver pivot terms. *** WARNING *** SUPPRESSED MESSAGE CP = 1223.422 TIME= 16:54:25 There are 25 small equation solver pivot terms. *** WARNING *** SUPPRESSED MESSAGE CP = 1243.141 TIME= 16:54:45 There are 241 small equation solver pivot terms. *** WARNING *** SUPPRESSED MESSAGE CP = 1277.024 TIME= 16:55:19 There are 4 small equation solver pivot terms. *** ERROR *** SUPPRESSED MESSAGE CP = 1298.459 TIME= 16:55:41 Equivalent plastic strain increment has exceeded the specified limit value. Since the time increment has reached the minimum value, the analysis is stopped. 出现以上错误，只加载几步，应力应变都还很小的时候就不算了，得不到荷载位移曲线的平滑段啊，求指导 |
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2楼2014-10-11 11:51:53
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