关于beam188单元蠕变模拟的求教

按理说beam188单元是应该能够模拟蠕变的，但是本人做的模型计算出来后根本看不出蠕变，请各位指导下
/PREP7
ET,1,BEAM188
MPTEMP,1,0
MPDATA,EX,1,,2.06e8
MPDATA,PRXY,1,,0.3
SECTYPE, 1, BEAM, HREC, , 4
SECOFFSET, CENT
SECDATA,0.2,0.2,0.005,0.005,0.005,0.005,0,0,0,0
tb,creep,1,,,6 !定义6号方程
tbdata,1,3.728e-6,1,-0.84,0
K,1,0,0,0,
K,2,0,0,12,
l,1,2
esize,1
LMESH, 1
FINISH
/SOL
D,1, , , , , ,ALL, , , , ,
D,2, , , , , ,UX,UY, , , ,

F,2,FZ,-10000
allsel,all
bfunif,temp,900
time,7300 !20year
kbc,1
nsubst,500
outres,all,all
SOLVE
FINISH

/post1
pldips,1
/post26
nsol,2,11,u,z
plvar,2
esol,3,9,,s,z
prod,4,3,,,,,,-1
plvar,4
esol,5,9,,epel,z
prod,6,5,,,,,,-1
plvar,6
esol,7,9,,epcr,z
prod,8,7,,,,,,-1
plvar,8

正在学习中……，看完了所有的贴，真实佩服水兄，能把Ansys玩转的这么熟练。

谢谢版主，好东西啊，学习了！