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shape memory alloy material in LS-DYNA

    • November 21, 2024 at 10:08 am
      1976197987
      Subscriber

      Hello everyone,

      I am confused about the derivation of the constitutive equation for Shape Memory Alloys in LS-DYNA Theory Manual. 

      When the bulk and shear modulus are functions of the martensite fraction according to formula (23.30.4), the formula (23.30.15) about (F_trial and belta) is obtained.

       

    • November 22, 2024 at 8:33 am
      1976197987
      Subscriber

      What does the expression in formula (23.30.27) look like and what's the difference between in formula （23.30.16）

    • December 2, 2024 at 3:40 pm
      pedram.samadian
      Ansys Employee

      Hello,

      in (23.30.16) is calculated at the timestep n, so it is the same as .

        can be obtained using Equations (23.30.15) and (23.30.16).

      Thanks,

      Pedram

       

       

       

       

       

       

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