Shape Memory Alloy

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

Hi again ;

i want to use a shape memory alloy material  ( Ni-Ti for exemple) in RADIOSS

i need your help please

Thanks

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Answers

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited April 2015

    Hi,

    The best is to use /MAT/LAW65 in Radioss. It’s nonlinear elastic with hystheresis, strain rate dependent, you may also define a plastic region if needed. It is only compatible with shell elements.

    There is also a LAW71, specially developed for NItinol with shape memory, but this one is not very stable actually and I would not recommend it.Hence the good choice is Law65 and I would like to add that law71 is Linear elastic before reaching the yld stress transformation.

    Regards

    Rahul R

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited April 2015

    ok @Rahul R i will do it 

    Do you have a property of one SMA material??

    thanks

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited April 2015

    Hi Fily,

     

    LAW 65 is compatible with shell elements. So you may have to use TYPE1 property in RADIOSS.

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