Abaqus - How to apply initial conditions as plastic strain? 3

[Jeje3103]

I m trying to apply to apply plastic strains initial conditions in Abaqus as you can see below : 

** ----------------------------------------------------------------
*Initial Conditions, type=PLASTIC STRAIN
test_elements, 0.338, -0.276, -0.0618, 0.0447
**
** STEP: Step-1

This part of code works in case of Stresses but not for plastic strains... The calculation present no errors, abaqus runs but when i check the results, it doesnt consider my plastic strain...

 

[Mustaine3]

Make an example with not more than 5 elements and post it. Then we'll see...

 

[Jeje3103]

Sorry for the delay...I have this one! thanks for your help


*Heading
** Job name: dernier1 Model name: test_plastic
** Generated by: Abaqus/CAE 6.13-1
*Preprint, echo=NO, model=NO, history=NO, contact=NO
**
** PARTS
**
*Part, name=PART-1-1
*Node
1, 0., -13.75, 3.
2, -15., -13.75, 3.
3, -30., -13.75, 3.
4, 0., -13.75, 0.
5, -15., -13.75, 0.
6, -30., -13.75, 0.
7, 0., 2.5, 3.
8, -15.3125, 2.5, 3.
9, -30.625, 2.5, 3.
10, 0., 2.5, 0.
11, -15.3125, 2.5, 0.
12, -30.625, 2.5, 0.
13, 0., 18.75, 3.
14, -15.625, 18.75, 3.
15, -31.25, 18.75, 3.
16, 0., 18.75, 0.
17, -15.625, 18.75, 0.
18, -31.25, 18.75, 0.
*Element, type=C3D8R
1, 7, 8, 11, 10, 1, 2, 5, 4
2, 8, 9, 12, 11, 2, 3, 6, 5
3, 13, 14, 17, 16, 7, 8, 11, 10
4, 14, 15, 18, 17, 8, 9, 12, 11
*Nset, nset=SET-1, generate
1, 18, 1
*Elset, elset=SET-1, generate
1, 4, 1
** Section: Section-1-SET-1
*Solid Section, elset=SET-1, material=MATERIAL-1
,
*End Part
**
**
** ASSEMBLY
**
*Assembly, name=Assembly
**
*Instance, name=PART-1-1, part=PART-1-1
*End Instance
**
*Nset, nset=SET-1, instance=PART-1-1, generate
1, 6, 1
*Elset, elset=SET-1, instance=PART-1-1
1, 2
*Elset, elset="test_elements,", instance=PART-1-1
1, 2
*Elset, elset=_SURF-1_S1, internal, instance=PART-1-1
3, 4
*Elset, elset=_SURF-1_S1_1, internal, instance=PART-1-1
3, 4
*Surface, type=ELEMENT, name=SURF-1
_SURF-1_S1_1, S1
*End Assembly
*Amplitude, name=AMP-1, time=TOTAL TIME, definition=PERIODIC
1, 5., 0., 0.
5., 1.
**
** MATERIALS
**
*Material, name=MATERIAL-1
*Elastic
140000., 0.28
*Plastic
50., 0.
100., 0.2
** ----------------------------------------------------------------
*Initial Conditions, type=PLASTIC STRAIN
test_elements, 0.338, 0., 0., 0.
**
** STEP: Step-1
**
*Step, name=Step-1, nlgeom=NO
*Static
5., 5., 5e-05, 5.
**
** BOUNDARY CONDITIONS
**
** Name: Disp-BC-1 Type: Symmetry/Antisymmetry/Encastre
*Boundary
SET-1, ENCASTRE
**
** LOADS
**
** Name: SURFFORCE-1 Type: Pressure
*Dsload, amplitude=AMP-1
SURF-1, P, -5
**
** 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

 

[Mustaine3]

After correcting the error in the set name, the job does exactly what you've defined. In two elements is a plastic strain in 1-direction (see PE11) right from the start.