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胡遠(yuǎn)琳新蟲(chóng) (初入文壇)
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[求助]
ansys/ls-dyna拉伸頸縮模擬求助
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最近在用ansys/ls-dyna做焊接接頭拉伸模擬，在右端施加恒定位移載荷，結(jié)果接頭幾乎只是向右端平移，沒(méi)大變形，更別提頸縮。 命令流如下： /title,lashen /prep7 et,1,plane162 mp,ex,1,207e+11 mp,nuxy,1,0.27 mp,dens,1,7800 tb,biso,1,,,, tbdat,1,4e8 tbdat,2,1.0e10 edmp,hgls,1,5,0.1,1.5,0.06 et,2,plane162 mp,ex,2,210e+11 mp,nuxy,2,0.3 mp,dens,2,7850 tb,biso,2,,,, tbdat,1,2.3e8 tbdat,2,1.5e10 edmp,hgls,1,5,0.1,1.5,0.06 RECT,-150,150,0+391.8,14.7+391.8 k,5,1.056546,391.8,0 k,6,-1.056546,391.8,0 k,7,6.854722,14.7+391.8,0 k,8,-6.854722,14.7+391.8,0 k,9,0,16+391.8,0 larc,7,8,9 a,5,7,8,6 AGEN,2,2 ASBA,1,2 AGLUE, ALL k,14,1.056546+0.75,391.8,0 k,15,6.854722+0.75,14.7+391.8,0 l,14,15 asbl,1,6 k,16,1.056546+0.75+1,391.8,0 k,17,6.854722+0.75+1,14.7+391.8,0 l,16,17 asbl,4,1 k,18,1.056546+0.75+1+0.75,391.8,0 k,19,6.854722+0.75+1+0.75,14.7+391.8,0 l,18,19 asbl,1,7 k,20,-1.056546-0.75,391.8,0 k,21,-6.854722-0.75,14.7+391.8,0 l,20,21 asbl,2,3 k,22,-1.056546-0.75-1,391.8,0 k,23,-6.854722-0.75-1,14.7+391.8,0 l,22,23 asbl,1,5 k,24,-1.056546-0.75-1-0.75,391.8,0 k,25,-6.854722-0.75-1-0.75,14.7+391.8,0 l,24,25 asbl,9,16 aglue,all k,26,15,391.8,0 k,27,15,391.8+14.7,0 l,26,27 asbl,7,26 k,28,-15,391.8,0 k,29,-15,391.8+14.7,0 l,28,29 asbl,1,20 aglue,all asel,s,area,,4 aatt,2,,2 esize,1 mshape,0,2D mshkey,0 amesh,4 asel,s,area,,5 aatt,2,,2 esize,1 mshape,0,2D mshkey,0 amesh,5 asel,s,area,,6 aatt,2,,2 esize,1 mshape,0,2D mshkey,0 amesh,6 asel,s,area,,8 aatt,2,,2 esize,1 mshape,0,2D mshkey,0 amesh,8 asel,s,area,,2 aatt,2,,2 esize,1 mshape,0,2D mshkey,0 amesh,2 asel,s,area,,10 aatt,2,,2 esize,1 mshape,0,2D mshkey,0 amesh,10 asel,s,area,,9 aatt,1,,1 esize,2 mshape,0,2D mshkey,0 amesh,9 asel,s,area,,7 aatt,1,,1 esize,2 mshape,0,2D mshkey,0 amesh,7 asel,s,area,,3 aatt,1,,1 esize,1 mshape,0,2D mshkey,0 amesh,3 asel,s,area,,12 aatt,1,1,1 esize,1 mshape,0,2D mshkey,0 amesh,12 asel,s,area,,11 aatt,1,1,1 esize,1 mshape,0,2D mshkey,0 amesh,11 allsle,all lsel,s,,,4 nsll,s,1 d,all,ux,0 lsel,s,,,12,14,1 nsll,s,1 d,all,uy,0 lsel,s,,,8 nsll,s,1 d,all,uy,0 lsel,s,,,17 nsll,s,1 d,all,uy,0 lsel,s,,,21 nsll,s,1 d,all,uy,0 lsel,s,,,27 nsll,s,1 d,all,uy,0 lsel,s,,,24 nsll,s,1 d,all,uy,0 lsel,s,,,29 nsll,s,1 d,all,uy,0 lsel,s,,,32 nsll,s,1 d,all,uy,0 lsel,s,,,35 nsll,s,1 d,all,uy,0 lsel,s,,,2 nsll,s,1 d,all,uy,0 lsel,s,,,2 nsll,s,1 cm,node1,node *dim,time,array,2,1,1 time(2,1,1)=100 *dim,compress,array,2,1,1 compress(2,1,1)=30 edload,add,ux,,node1,time,compress allsel,all finish /solu edopt,add,blank,both time,300 edrst,100 edhtime,100 outres,all,all solve finish 應(yīng)該要設(shè)定斷裂準(zhǔn)則，應(yīng)該怎么設(shè)定呢？ 跪求指導(dǎo)！！ 變形截圖如下 _BC`B1W7EN%_L)WNYP2V6)S.png MSRV~Y((GJ}[Y2HZ(7_VC(M.png@wuming524 |
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