我才接触CAE。一些基本功都不太懂。

我了解到通过Field Variable和Amplitude来实现。

首先我定义了一个幅值曲线：

*Amplitude, name=Amp-3

         86400.,              0.,         172800.,              1.,         259200.,              2.,         345600.,              3.

        518400.,              4.

然后在材料里面的弹性模量里面已经定义了和场变量Fv有关：

*Material, name=concrete

*Conductivity

 2.618,

*Density

 2497.77,

*Elastic, dependencies=1

 2.69e+10, 0.2, ,  0.

 3.21e+10, 0.2, ,  1.

 3.53e+10, 0.2, ,  2.

 3.71e+10, 0.2, ,  3.

 3.71e+10, 0.2, ,  4.

后面我是在step-2里面加入Field Variable,可是我具体不知道怎么加进去。

** amplitude to change FV1 during the time 

** field variable definition

*FIELD, VARIABLE=1, AMPLITUDE=Amp-3

可是在*Initial Conditions,里面需要定义field吗？

下面是我的部分inp文件。请大神帮我看一下。非常感谢了。

毕业好艰难。(┬＿┬)

** PREDEFINED FIELDS

** 

** Name: Predefined Field-1   Type: Temperature

*Initial Conditions, type=TEMPERATURE

_PickedSet37, 20.

** ----------------------------------------------------------------

** 

** STEP: Step-1

** 

*Step, name=Step-1, nlgeom=YES, inc=302400

*Static, direct

1800., 518400., 

** 

** OUTPUT REQUESTS

** 

*Restart, write, frequency=0

** 

** FIELD OUTPUT: F-Output-1

** 

*Output, field

*Node Output, exterior

CF, RF, RM, RT, TF, U, UR, UT

V, VF, VR, VT

*Element Output, exterior, directions=YES

ALPHA, ALPHAN, BF, CENTMAG, CENTRIFMAG, CORIOMAG, CS11, CTSHR, E, EE, ER, ESF1, GRAV, HP, IE, LE

MISES, MISESMAX, MISESONLY, NE, NFORC, NFORCSO, P, PE, PEEQ, PEEQMAX, PEEQT, PEMAG, PEQC, PRESSONLY, PS, ROTAMAG

S, SALPHA, SE, SEE, SEP, SEPE, SF, SPE, SSAVG, THE, TRIAX, TRNOR, TRSHR, TSHR, VE, VEEQ

VS

*Contact Output

CDISP, CDISPETOS, CDSTRESS, CFORCE, CLINELOAD, CNAREA, CPOINTLOAD, CSTATUS, CSTRESS, CSTRESSETOS, PPRESS

** 

** HISTORY OUTPUT: H-Output-2

** 

** 

** HISTORY OUTPUT: H-Output-1

** 

*Output, history, variable=PRESELECT

*End Step

** ----------------------------------------------------------------

** 

** STEP: Step-2

** 

*Step, name=Step-2, nlgeom=YES, inc=302400

*Static, direct

1800., 518400., 

** amplitude to change FV1 during the time

*AMPLITUDE, name=Amp-3

** 

** BOUNDARY CONDITIONS

** 

** Name: BC-1 Type: 位移/转角

*Boundary

Set-6, 1, 1

Set-6, 2, 2

Set-6, 3, 3

** Name: BC-2 Type: 位移/转角

*Boundary

Set-7, 1, 1

Set-7, 2, 2

** 

** PREDEFINED FIELDS

** 

** Name: Predefined Field-2   Type: Temperature

*Temperature, file=D:/Abaqus/Job-3.odb, bstep=1, binc=1, estep=1, einc=252, interpolate

** 

** OUTPUT REQUESTS

** 

*Restart, write, frequency=0

** 

** FIELD OUTPUT: F-Output-2

** 

*Output, field

*Node Output

CF, RF, RM, RT, TF, U, UR, UT

V, VF, VR, VT

*Element Output, directions=YES

ALPHA, ALPHAN, BF, CENTMAG, CENTRIFMAG, CORIOMAG, CS11, CTSHR, E, EE, ER, ESF1, GRAV, HP, IE, LE

MISES, MISESMAX, MISESONLY, NE, NFORC, NFORCSO, P, PE, PEEQ, PEEQMAX, PEEQT, PEMAG, PEQC, PRESSONLY, PS, ROTAMAG

S, SALPHA, SE, SEE, SEP, SEPE, SF, SPE, SSAVG, THE, TRIAX, TRNOR, TRSHR, TSHR, VE, VEEQ

VS

*Contact Output

CDISP, CDISPETOS, CDSTRESS, CFORCE, CLINELOAD, CNAREA, CPOINTLOAD, CSTATUS, CSTRESS, CSTRESSETOS, PPRESS

** 

** FIELD OUTPUT: F-Output-1

** 

*Node Output, exterior

CF, RF, RM, RT, TF, U, UR, UT

V, VF, VR, VT

*Element Output, exterior, directions=YES

ALPHA, ALPHAN, BF, CENTMAG, CENTRIFMAG, CORIOMAG, CS11, CTSHR, E, EE, ER, ESF1, GRAV, HP, IE, LE

MISES, MISESMAX, MISESONLY, NE, NFORC, NFORCSO, P, PE, PEEQ, PEEQMAX, PEEQT, PEMAG, PEQC, PRESSONLY, PS, ROTAMAG

S, SALPHA, SE, SEE, SEP, SEPE, SF, SPE, SSAVG, THE, TRIAX, TRNOR, TRSHR, TSHR, VE, VEEQ

VS

*Contact Output

CDISP, CDISPETOS, CDSTRESS, CFORCE, CLINELOAD, CNAREA, CPOINTLOAD, CSTATUS, CSTRESS, CSTRESSETOS, PPRESS

** 

** HISTORY OUTPUT: H-Output-2

** 

** 

** HISTORY OUTPUT: H-Output-1

** 

*Output, history, variable=PRESELECT

*End Step