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[Solved] Using MCalibration to get BB model constants


purush537
Posts: 22
Topic starter
(@purush537)
Eminent Member
Joined: 13 years ago

Hi,

I am using MCalibration software to calibrate the BB model for our elastomer. I have two sets of uniaxial compression test data with different strain rates for this purpose. The calibration, as I was expecting, depends on the initial values of constant. I have tried changing the parameters manually to get the prediction closer to the test data, however the software calibration does not give me a good fit for the manually manipulated initial values.

I would like to know if there is any rule of thumb for initial values for the uniaxial tests.

Thank you,

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Jorgen
Posts: 3941
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(@jorgen)
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Joined: 2 years ago

In my experience, MCalibration is very good at find the necessary parameter for the BB-model.

I am happy to share some rules of thumb about what the parameters typically are, but I think it might be even more useful if I could demonstrate the calibration procedure for you.
Can you post your two experimental data files?

-Jorgen

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purush537
Posts: 22
Topic starter
(@purush537)
Eminent Member
Joined: 13 years ago

Hello Jorgen,

I sent you an email a couple days ago and attached the data files. Let me know how they look!

Thank you,

Hossein

jjcalde
Posts: 5
(@jjcalde)
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Joined: 9 years ago

[QUOTE=h_sadeghy,9375]Hello Jorgen,

I sent you an email a couple days ago and attached the data files. Let me know how they look!

Thank you,

Hossein[/QUOTE]

Dear Hossein,

did you solve your issue? I have a similar problem. Would you please share with us how you solved it?

Berkan

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