element definition

[dyeyanie]

Hi Louise,

I would like to include the .eld input file into my .inp file. However, I'm not really sure on how the distribution of element definition was made. Like in .ori file, I knew that the distirbution is as follows;

*Distribution Table, Name=TexGenOrientationVectors
COORD3D,COORD3D
*Distribution, Location=Element, Table=TexGenOrientationVectors, Name=TexGenOrientationVectors, Input=AI.ori

what I mean was, what is the label of each column.
Hope you could help on this. Thanks

Yanie

[louisepb]

Hi Yanie,

Here is the section lifted from the .inp file produced by the dry fibre export. It gives the definitions for the columns in the .eld file:

** Note: Additional element data are stored as a depvars:
** 1 - Yarn Index (-1 for matrix, first yarn starting at 0)
** 2/3 - Location (x and y cross-section coordinates of element relative to yarn centerline)
** 4 - Volume fraction
** 5 - Distance of element from the surface of the yarn (for yarn elements only, distance is negative)
*Initial Conditions, Type=Solution, Input=test.eld

Louise

[dyeyanie]

Hi Louise,

I vary my geometry according to the fibre volume fraction so I've called the eld input in my input file as you attached before. Below is the details of my input;

*****************

*** MATERIALS ***

*****************

*Material, Name=Mat0

*Elastic

2.5e+009, 0.35

*Expansion

6.5e-006

*Material, Name=Mat1

*Elastic

7.25e+09, 0.22

*Expansion

4.9e-06

*Solid Section, ElSet=Matrix, Material=Mat0

1.0,

*Solid Section, ElSet=Yarn0, Material=Mat1

1.0,
*Solid Section, ElSet=Yarn38, Material=Mat1

1.0,

*Solid Section, ElSet=Yarn39, Material=Mat1

1.0,

** Note: Additional element data are stored as a depvars:

** 1 - Yarn Index (-1 for matrix, first yarn starting at 0)

** 2/3 - Location (x and y cross-section coordinates of element relative to yarn centerline)

** 4 - Volume fraction

** 5 - Distance of element from the surface of the yarn (for yarn elements only, distance is negative)

*Initial Conditions, Type=Solution, Input=AI.eld

Once I ran them in ABAQUS, I found that the results are the same even I made changes to the volume fraction (10%, 20% etc..). Did I call them wrongly?

Yanie

[louisepb]

Hi Yanie,

This should have read in the variables for you. Abaqus will not, however, automatically use theses. You will need to write a user subroutine to define how you wish Abaqus to use the data. The Abaqus user manual should give you guidance on doing this.

Louise

[dyeyanie]

HI Louise,

Is there any alternatives for me instead of providing the subroutines to call the eld files? My intention is to vary the volume fraction of the geometry and I varies them according to Yarn linear density values.

Yanie

[louisepb]

Hi Yanie,

If you want Abaqus to make any use of your volume fraction data then you will have to use a subroutine to get it to do so.

Louise