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Shape Memory Alloy

User: "Altair Forum User"
Altair Forum User
Altair Employee
Updated by Altair Forum User

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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    User: "Rahul Rajan_21763"
    Rahul Rajan_21763
    New Altair Community Member
    Updated by Rahul Rajan_21763

    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

    User: "Altair Forum User"
    Altair Forum User
    Altair Employee
    OP
    Updated by Altair Forum User

    ok @Rahul R i will do it 

    Do you have a property of one SMA material??

    thanks

    User: "Altair Forum User"
    Altair Forum User
    Altair Employee
    OP
    Updated by Altair Forum User

    Hi Fily,

     

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

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