Distributed Young's Modulus

[dsch1]

I'm trying to model a simple beam in ANSYS 14.5, and I want the Young's Modulus to vary linearly along the beam (e.g. start at 10GPa at one side, and vary linearly to be 15GPa on the other side).

The only way I can see this working so far is by meshing and applying different properties to elements individually. Is there an input for a distributed Young's Modulus?

Cheers

 

[rickfischer51]

Two ways to do this.

1. Make Youngs modulus a function of temp, set your CTE to zero, and apply a temp that varies across the beam.

2. Run an APDL script like this:

/prep7

l=10

block,0,l,0,1,0,.5
et,1,185
nuxy,1,.3
esize,.25
vmesh,1

ecount=elmiqr(0,14)

*dim,edata,,ecount,5
*vget,edata(1,1),elem,1,cent,x
*vfill,edata(1,2),ramp,10,0
*voper,edata(1,3),edata(1,1),div,10
*voper,edata(1,4),edata(1,3),mult,5
*voper,edata(1,5),edata(1,2),add,edata(1,4)

ex,(1:ecount),edata(1:ecount,5)

emodif,(1:ecount),mat,(1:ecount)


Rick Fischer
Principal Engineer
Argonne National Laboratory