Material Law for Flexible material
Altair EmployeeI am working on a tensile test of flexible material like plastic film and paper.
Have referred tutorial (RD-3500) for tensile test and they are using mat law 2 Johns zeril for there material.
Can I use the same law for the tensile test of flexible material.?
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Altair EmployeeThanks very much Rahul.
Altair EmployeeHi Sir,
I have a query regarding material law used(MAT LAW 27).
I checked above shared model,observe the Failure model FAIL_FLD which require forming limiting diagram.
And also checked the MAT LAW 27 in help and observed following properties(Highlighted);
Example(Aluminium)
| #RADIOSS STARTER #---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----| /BEGIN LAW27_void Aluminum 110 0 Mg mm ms Mg mm ms #---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----| /MAT/PLAS_BRIT/3 Aluminum # Init. dens. 0.0027 # E NU 60400 0.33 # A B N SIGMAX 90.266 223.14 0.375 177 # C EPS0 ICC 0 0 0 # EPST1 EPSM1 D_MAX1 EPSF1 0.16 0.72 0.999 1 # EPST2 EPSM2 D_MAX2 EPSF2 0 0 0 0 #---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----| #ENDDATA /END #---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----| |
Now, the query is regarding....shall I used these properties instead of using the failure model FAIL_FLD ?
If yes,then will the behavior of flexible material (film) remains same...?
Altair EmployeeHi,
Shall I go through these properties?
Or Is it necessary to use Forming limiting Diagram?
Please try as per shared deck and even you can try with the data mentioned above. Its always good to try & experience.
Altair EmployeeThank you sir...
Will try as per shared data and above mentioned data.
Altair EmployeeHI,
I am unable to find some properties but working on that.
Meanwhile also studied the Forming Limiting Diagram.
Can you suggest that how to get Forming limiting diagram for plastic material?
We have a FLD utility in HV.
Load HF utilities as shown below. You will find FLD option under the HF pull down menu.See attached screenshot.
<?xml version="1.0" encoding="UTF-8"?>
Altair EmployeeHi Sir,
As per your suggestion,I used HF utility and loaded FL Curve.
But, I am getting the same FL Curve for the same model with different material properties.
Also I am getting same FL Curve for 2 different models as well.
Is it the case that FL curve for 2 different models and 2 different materials are same?(Please see attachments)
Plus I am using FL curve obtained in different test conditions. Is it right method?
<?xml version="1.0" encoding="UTF-8"?>
<?xml version="1.0" encoding="UTF-8"?>
<?xml version="1.0" encoding="UTF-8"?>
Altair EmployeeHi,
I run the deck shared by you and import the h3d file in HV.
Then load the FLC by using HF utility,getting the same curve for this model also(refer the attachments).
Also FLD used in a deck is not same as of FLD which is obtained in HV.
Kindly clarify the same.
<?xml version="1.0" encoding="UTF-8"?>
<?xml version="1.0" encoding="UTF-8"?>
Hi,
Refer attached zipped file for same.
Regards
Rahul R
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