钢管空拔有限元分析遇到的问题

schweinizl

1.首先用PROE建立钢管和中式模的模型。
2.打开ANSYS软件设为LS-DYNA，import->proe导入中式模模型,创建SOLID164单元，设置材料

模型如下
TYPE,1!
MAT,1!
MP,ex,1,206e9!
MP,nuxy,1,.3!
MP,dens,1,7900!
EDMP,rigid,1,7,7!
导入钢管模型，创建SOLID164单元，设置材料模型如下
TYPE,2!
MAT,2!
MP,ex,2,206e9!
MP,nuxy,2,.30!
MP,dens,2,7900!
TB,PLAW,2,,,8!
TBDATA,1,207e6!
TBDATA,3,.75!
TBDATA,4,40.0!
TBDATA,5,5.0!
TBDATA,6,1!
*DIM,TruStran,,5!
*DIM,TruStres,,5!
TruStran(1)=0,.08,.16,.4,.75!
TruStres(1)=207e6,250e6,275e6,290e6,300e6!
EDCURVE,ADD,1,TruStran (1),TruStres(1)!

3.用MESHTOOL分别对钢管和中式模进行体网格划分（扫掠网格划分）。
4.自动创建PART1，PART2。
5.创建接触对。选择面面接触，自动(ASSC)，CONTACT和TARGET分别为PART1,PART2。
6.设定初速度。对钢管所有节点(用COMP定义)施加Y轴初速度300。
7.创建两个数值型数组（2,1,1）用以施加位移载荷，分别为 TIME 0
1.2
DISPLACEMENT
0
360
8.施加Y方向的位移。
9.设定终止时间1.2，指定输出间隔80，时间间隔80，能量损耗，输出频率。
点SOLVE弹出"A check of model data produced 1 watnings.是否继续SOLVE。"及以下内容

S O L U T I O N
O P T I O N S


PROBLEM DIMENSIONALITY. . . . . . . . . . . . .3-D


DEGREES OF FREEDOM. . . . . . UX
UY
UZ
AX
AY
AZ
VX
VY
VZ



*** NOTE ***
CP =
23.719
TIME= 12:56:36

Although VX,VY,VZ and AX,AY,AZ may appear as degrees of freedom, they


are not actually physical degrees of freedom.
However, these


quantities are computed as degrees of freedom and stored for


post-processing.


ANALYSIS TYPE . . . . . . . . . . . . . . . . .TRANSIENT


SOLUTION METHOD. . . . . . . . . . . . . . .EXPLICIT DYNAMICS

PLASTIC MATERIAL PROPERTIES INCLUDED. . . . . .YES

NEWTON-RAPHSON OPTION . . . . . . . . . . . . .PROGRAM CHOSEN


GLOBALLY ASSEMBLED MATRIX . . . . . . . . . . .SYMMETRIC



L O A D
S T E P
O P T I O N S


LOAD STEP NUMBER. . . . . . . . . . . . . . . .
1

TIME AT END OF THE LOAD STEP. . . . . . . . . .
1.2000


NUMBER OF SUBSTEPS. . . . . . . . . . . . . . .
1

MAXIMUM NUMBER OF EQUILIBRIUM ITERATIONS. . . .
15

STEP CHANGE BOUNDARY CONDITIONS . . . . . . . .
NO

TERMINATE ANALYSIS IF NOT CONVERGED . . . . . .YES (EXIT)


CONVERGENCE CONTROLS. . . . . . . . . . . . . .USE DEFAULTS

COPY INTEGRATION POINT VALUES TO NODE . . . . .YES, FOR ELEMENTS WITH

ACTIVE MAT. NONLINEARITIES

PRINT OUTPUT CONTROLS . . . . . . . . . . . . .NO PRINTOUT

DATABASE OUTPUT CONTROLS. . . . . . . . . . . .ALL DATA WRITTEN

FOR THE LAST SUBSTEP
点YES，ANSYS软件突然关闭。请高手指导此分析哪里设置错误。

schweinizl

依据中国知网上别人的论文《基于ANSYS/LS-DYNA的空拔钢管有限元分析》 自己尝试的怎么不行，一点SLOVE就自动关闭ANSYS程序了。望高手指教，不胜感谢。

schweinizl

FINISH
/CLEAR,START
KEYW,PR_STRUC,1
KEYW,LSDYNA,1
/PREP7
ET,1,SOLID164
TYPE,1
MAT,1
MP,ex,1,206e9
MP,nuxy,1,.3
MP,dens,1,7900
EDMP,rigid,1,7,7
K,1,0,575,0
K,2,0,575,220
K,3,0,355,220
K,4,0,355,180
K,5,0,400,0
A,1,2,3,4,5
K,6,0,0,0
K,7,0,0,50
VROTAT,1,,,,,,6,7
LESIZE,36,,,100,,,,,1
LESIZE,11,,,100,,,,,1
LESIZE,21,,,100,,,,,1
LESIZE,31,,,100,,,,,1
LESIZE,4,,,20,,,,,1
LESIZE,29,,,20,,,,,1
LESIZE,19,,,20,,,,,1
LESIZE,9,,,20,,,,,1
LESIZE,3,,,5,,,,,1
LESIZE,28,,,5,,,,,1
LESIZE,18,,,5,,,,,1
LESIZE,8,,,5,,,,,1
LESIZE,2,,,20,,,,,1
LESIZE,7,,,20,,,,,1
LESIZE,17,,,20,,,,,1
LESIZE,27,,,20,,,,,1
VSWEEP,ALL
ET,2,SOLID164
TYPE,2!
MAT,2!
MP,ex,2,206e9!
MP,nuxy,2,.30!
MP,dens,2,7900!
TB,PLAW,2,,,8!
TBDATA,1,207e6!
TBDATA,3,.75!
TBDATA,4,40.0!
TBDATA,5,5.0!
TBDATA,6,1!
*DIM,TruStran,,5!
*DIM,TruStres,,5!
TruStran(1)=0,.08,.16,.4,.75!
TruStres(1)=207e6,250e6,275e6,290e6,300e6!
EDCURVE,ADD,1,TruStran (1),TruStres(1)!
CYL4,0,0,390,,370,,-500
LESIZE,41,,,100,,,,,2
LESIZE,42,,,100,,,,,2
LESIZE,43,,,100,,,,,2
LESIZE,44,,,100,,,,,2
LESIZE,45,,,100,,,,,2
LESIZE,46,,,100,,,,,2
LESIZE,47,,,100,,,,,2
LESIZE,48,,,100,,,,,2
LESIZE,57,,,60,,,,,2
LESIZE,58,,,60,,,,,2
VSWEEP,5
ALLSEL,ALL
EDPART,CREATE
EDCGEN,ASTS,2,1,0.3,0.2,0,0,0,,,,,0,10000000
FINISH
/SOL
ESEL,S,MAT,,2
NSLE,S
CM,GG,NODE
EDVE,VELO,GG,0,0,300,0,0,0,,,,,,
*DIM,TIME,ARRAY,2,1,1,,,
*SET,TIME(2,1,1),1
*DIM,DISP,ARRAY,2,1,1,,,
*SET,DISP(1,1,1),0
*SET,DISP(2,1,1),300
NSEL,S,LOC,Z,-500
CM,ZH,NODE
EDLOAD,ADD,UZ,0,ZH,TIME,DISP,0,,,,,
TIME,1
EDRST,50
EDHTIME,10000
EDENERGY,1,1,1,1
SOLVE
这是我做的模型，哪里不对？我对钢管所有节点施加了一个初速度，选取了钢管尾部端面的所有节点施加时间—位移载荷。请大侠指点。