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[求助]
【已完結(jié)】軸對(duì)稱單元結(jié)果擴(kuò)展成整個(gè)圓柱體
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通用軸對(duì)稱單元solid272,keyopt(2)=3 查看位移結(jié)果,顯示的不是圓柱體,而是有棱有角的模型。 [ Last edited by 1592203609 on 2014-6-6 at 20:34 ] |
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fini /cle /filname,throughole,0 *set,HD_D,5130 !應(yīng)變片中間位置直徑D,即測(cè)量圓直徑 *set,HD_GL,1590 !應(yīng)變片長(zhǎng)度GL *set,t,0.3 !定義孔與測(cè)圓直徑比t *set,HD_D0,t*HD_D !鉆孔直徑D0 *set,sample_th,0.1*HD_D !試件厚度 厚度小于鉆孔直徑為薄工件,但它會(huì)有什么影響呢? *set,sample_radia,5*HD_D !試件半經(jīng) *set,sample_stress,110 !試件內(nèi)應(yīng)力 (等雙軸應(yīng)力場(chǎng)、純剪切應(yīng)力場(chǎng)) !!!!!!!!!!!!!!!!!!!!!定義單元類型、實(shí)常數(shù)、材料屬性。。。。。。。。。! /prep7 et,1,solid272,,3 et,2,surf159,,3 sect,1,axis secd,2,0,2 mp,ex,1,210e3 !未挖去的材料屬性 mp,prxy,1,0.3 !!!!!!!!!!!!!!!!創(chuàng)建模型!!!!!!!!!!!!!!!!!!!!! rectng,HD_D0/2,sample_radia,0,sample_th !繪制矩形區(qū)域 -非鉆孔區(qū) rectng,(HD_D-HD_GL)/2,(HD_D+HD_GL)/2,0,sample_th !繪制矩形區(qū)域 -測(cè)量區(qū) aovlap,all lsel,s,,,all lglue,all !粘接各條線 nummrg,all,,,,low !合并相同類,保留低級(jí)元素 ,同時(shí)把材料相同類也合并了 numcmp,all !壓縮編號(hào) allsel !!!!!!!!!!!!!!!!!!!!!網(wǎng)格!!!!!!!!!!!!!!!!!!!! alls lesize,all,200 type,1 mat,1 secn,1 amesh,all nsel,s,loc,x,HD_D0/2-1,HD_D0/2+1 type,2 esurf,0 alls wpro,,-90, cswpla,11,1,1,1 alls naxis !!!!!!!!!!!!!!!!!!!!!第一載荷步孔邊施加反向殘余等雙軸應(yīng)力場(chǎng)并求解!!!!!!!!!!!!!!!!!!!!!!!!!!! /solu antype,static lsclear,all !!!清除所有載荷 !!!!!!!!!!!!!!!!!!!設(shè)定分析選項(xiàng)!!!!!!!!!!!!!!!!!!!!!!!!! time,1 deltim,0.1,0.05,0.2 !時(shí)間步長(zhǎng),初始0.1的步長(zhǎng),自動(dòng)時(shí)間步長(zhǎng)最小0.05,最大0.2,始終以0.1步長(zhǎng)來(lái)作為下一子步載荷起點(diǎn) !Carry:OFF?—?Use DTIME as time step at start of each load step. autots,on !使用自動(dòng)時(shí)間步長(zhǎng) pred,on !打開時(shí)間步長(zhǎng)預(yù)測(cè)器 lnsrch,on !打開線性搜索 nlgeom,on !打開大位移效果 nropt,full !設(shè)定牛頓-拉普森迭代 cnvtol,f,,0.002,2,0.05 !設(shè)定力收斂條件 ,默認(rèn)值力收斂公差,犯數(shù),精度0.2% !cnvtol,f,,0.02,2,0.05 !設(shè)定力收斂條件 ,默認(rèn)值力收斂公差,犯數(shù),精度2% !cnvtol,u,0.02,0.0005,2位移收斂條件 eqslv,PCG,1e-8,1 !施加邊界條件和載荷*define constraints /eshape,1 csys,0 nsel,s,loc,y,0 d,all,,,,,,uy,,,,, alls csys,11 nsel,r,loc,x,sample_radia-1,sample_radia+1 d,all,,,,,,ux,uz,,,, csys,0 alls esel,s,type,,2 sfe,all,2,pres,,sample_stress,,, !施加 cos余弦環(huán)向壓力 allsel,all solve !!!!!!!!!!!!!!!!!!!!!!!后處理查看結(jié)果!!!!!!!!!!!!!!!!!!!!!!! /post1 set,first rsys,11 !結(jié)果坐標(biāo)系為柱坐標(biāo),z為轉(zhuǎn)軸 /eshape,0 !擴(kuò)展,查看3D單元模型 !/expand,72,axis,,,5 plnsol,u,x,0,1 !顯示徑向位移等值線圖 |
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