我才接觸CAE。一些基本功都不太懂。

我了解到通過Field Variable和Amplitude來實現。

首先我定義了一個幅值曲線：

*Amplitude, name=Amp-3

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

        518400.,              4.

然后在材料里面的彈性模量里面已經定義了和場變量Fv有關：

*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,可是我具體不知道怎么加進去。

** amplitude to change FV1 during the time 

** field variable definition

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

可是在*Initial Conditions,里面需要定義field嗎？

下面是我的部分inp文件。請大神幫我看一下。非常感謝了。

畢業好艱難。(┬＿┬)

** 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/轉角

*Boundary

Set-6, 1, 1

Set-6, 2, 2

Set-6, 3, 3

** Name: BC-2 Type: 位移/轉角

*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