HOW TO FITTING UNIAXIAL CURVE

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Greetings

 

I want to input odgen law (mu and alfa) on radios solver, but i just have curve uni-axial tension, how get value mu and alfa from that curve?

 thanks for your support.

 

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Answers

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited November 2020

    Hi,

    Please find attached RADIOSS input deck for LAW69 where you can input stress-strain curve and extract the Mooney / Ogden parameters.

     

    Attached PDF will explain you the steps to be followed, this was presented at our last ATC.

     

    Thanks,

    Rahul R

    Unable to find an attachment - read this blog

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2016

    thanks for your advice, but if we use LAW69 error negative volume will be occur.

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited March 2016

    We have some post for negative volume error. please have a look there.

     

    Regards

    Rahul R

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2016

    OK, thanks

     

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