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Abaqus-Change material properties using field variable in the second step.
Hello everyone,
I am using Abaqus 6.12.
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I have problem to change
the material properties in my model. I need your help, i spend more than week
to solve this problem. please try to help me.
I want to change the
material properties in the second step. I use the *field key words, but
i might perform a mistake that is why, it did not work. i find that the in the
second step the young's modulus still the one which i used in the first ste.
the model is so simple, it is a block, i squeeze this block, i made a set its name is all. I name this set when i define the section. I read some posts that the name of the set should correspond to the instance (assembly) i try to use this name, but it did not work also.
*Material ,
name=Material-1
*Elastic, dependencies=1
3E+06, 0.3, , 0.
30000., 0.3, , 1.
*Initial
conditions,type=field,variable=1
All,0
** STEP: Step-1
*Step, name=Step-1
*Static
1., 1., 1e-05, 1.
** STEP: Step-2
*Step, name=Step-2
*Static
1., 1., 1e-05, 1.
*Field, variable=1
All,1
Thank you.
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Dear All, I attached
Dear All,
I attached part of input file,the begining of the input file is nodal co-ordinates and element connectivity, i did not attach this part. the model is so simple, it is a uniaxial compression for a block. i wish if any one can help me find the error in the input file,i.e, why i could not change the material properties in the second step using the *filed keyword.
*Nset, nset=_PickedSet2, internal, generate
1, 1331, 1
*Elset, elset=_PickedSet2, internal, generate
1, 1000, 1
*Nset, nset=Nall, generate
1, 1331, 1
** Section: Section-1
*Solid Section, elset=_PickedSet2, material=Material-1
*End Part
****
** ASSEMBLY
**
*Assembly, name=Assembly
**
*Instance, name=Part-1-1, part=Part-1
*End Instance
**
*Nset, nset=_PickedSet4, internal, instance=Part-1-1, generate
11, 1331, 11
*Elset, elset=_PickedSet4, internal, instance=Part-1-1, generate
10, 1000, 10
*Elset, elset=__PickedSurf5_S6, internal, instance=Part-1-1, generate
1, 991, 10
*Surface, type=ELEMENT, name=_PickedSurf5, internal
__PickedSurf5_S6, S6
*End Assembly
**
** MATERIALS
**
*Material, name=Material-1
*Elastic, dependencies=1
3000., 0.3, , 0.
3000., 0.3, , 1.
**
** BOUNDARY CONDITIONS
**
** Name: BC-1 Type: Displacement/Rotation
*Boundary
_PickedSet4, 1, 1
_PickedSet4, 2, 2
_PickedSet4, 3, 3
**
*Initial conditions, type=field, variable=1
Nall,0
*Amplitude, name=fieldstep
0.0, 1.0, 1, 1.0
** ----------------------------------------------------------------
**
** STEP: Step-1
**
*Step, name=Step-1
*Static
1., 1., 1e-05, 1.
**
** LOADS
**
** Name: Load-1 Type: Pressure
*Dsload
_PickedSurf5, P, 1000.
**
** OUTPUT REQUESTS
**
*Restart, write, frequency=0
**
** FIELD OUTPUT: F-Output-1
**
*Output, field, variable=PRESELECT
**
** HISTORY OUTPUT: H-Output-1
**
*Output, history, variable=PRESELECT
*End Step
** ----------------------------------------------------------------
**
** STEP: Step-2
**
*Step, name=Step-2
*Static
1., 1., 1e-05, 1.
*field, variable=1, Amplitude=fieldstep
Nall,1
**
** OUTPUT REQUESTS
**
*Restart, write, frequency=0
**
** FIELD OUTPUT: F-Output-1
**
*Output, field, variable=PRESELECT
**
** HISTORY OUTPUT: H-Output-1
**
*Output, history, variable=PRESELECT
*End Step