Elastif vs Stiffness in curve

Ushay
Ushay Altair Community Member
edited October 2020 in Community Q&A

Hi,

can anyone please tell what Elastif mean in property 35. It is written as Stiffness, but the stiffness will be calculated from the curve defined in the function. So how different this stiffness is from the other?

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2018

    Hi,

    This property is not yet updated in HyperMesh and so we don't have much information on this card yet.

    It seems like the Eastif defines the stiffness per unit length of the spring, whereas the curves as something similar to fore vs displacement curves and only used for failure based on user inputs.

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