Learning Forum

[ali.afrouzian]

I'm going to couple Jmat pro with Ansys. 

I'm going to use Jmat pro to capture the physical properties during metal additive manufacturing.

I was wondering if any of you guys have done that.

Please reply if you have any information.

[Reno Genest]

 

Hello Ali,

I am not familiar with JmatPro. I did a quick search and it seems there is an export to LS-DYNA from JmatPro. What is the material output? What is the LS-DYNA *MAT_ card written by JmatPro?

Are you trying to do welding simulation? JmatPro has been used with LS-DYNA for welding:

https://www.dynalook.com/conferences/16th-international-ls-dyna-conference/metal-forming-t8-2/t8-2-a-metal-forming-138.pdf

 

If JmatPro exports the correct *MAT_ material card, then you can import this *MAT_ card in Ansys WB LS-DYNA (Mechanical) using a command snippet under the appropriate body:

 

Let me know if this helps or not.

 

Reno.

 

[ali.afrouzian]

Hi Reno,

Thanks for the response.

Yes, I'm going to use it for my metal additive manufacturing work which is cyclic melting and solidification. 

[Reno Genest]

Hello Ali,

Ok, let me know how it goes. You can also try to reach out to JmatPro support for help:

https://www.sentesoftware.co.uk/agents-3509

 

Reno.

[Reno Genest]

Hello Ali,

I contacted JMatPro® support and they replied the following:

"The export from  JMatPro® to LS-DYNA is for welding simulations and based on the CWM model. It was created after a request by an existing customer and is limited to Al alloys and steels.

 

The next major version of JMatPro® will include an export to Ansys Workbench for all material types considered.

 

It is always possible for the end-user to cut and paste the calculated properties from JMatPro® to whatever format required".

 

Here is an example of material output from JMatPro® to LS-DYNA:

"*KEYWORD
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
$ ALLOY_ID_WT%      Al88.87Cr0.23Cu1.6Fe0.5Mg2.5Mn0.3Si0.4Zn5.6
$ ALLOY_ID_AT%      Al93.03Cr0.125Cu0.711Fe0.253Mg2.905Mn0.154Si0.402Zn2.419
$ Alloy calculated with JMatPro
$ JMatPro VERSION      14.0
$ MATERIAL TYPE = Aluminium Alloy
$ SubType = HT
$ Alloy Type = Wrought
$ Heat Treatment = T5
$ Quench temp (K) = 773.15
$ Ageing temp (K) = 423.15
$ Grain Size = 50 microns
$ Additional heat treat = None
$ Constant Testing Time = 0.0 h
$ Strain rate: 0.001 0.01/s)
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
*MAT_CWM_TITLE
Material Description
$#     mid        ro      lcem      lcpr      lcsy      lchr      lcat      beta
         1  2.807E-6     10001     10002    -10003               10005       1.0
$# tastart     taend   tlstart     tlend    eghost    pghost    aghost      
     460.0     630.0  -1000000 -100000.0                0.49          
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
*MAT_THERMAL_ISOTROPIC_TD_LC_TITLE
Material Description
$#    tmid       tro     tgrlc    tgmult      
         1  2.807E-6                    
$#    hclc      tclc    
     10006     10007
$---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
*DEFINE_CURVE_TITLE
Young's modulus
$#    lcid      sidr       sfa       sfo      offa      offo    dattyp     lcint
     10001                 1.0       1.0                                        
$#                a1                  o1
                25.0           6.99734E1
                40.0           6.94673E1
                60.0           6.87761E1
                80.0           6.80661E1
               100.0           6.73371E1"

 

Reno.