scale factor in LAW70

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

hi all,

 

could anyone clarify what is the FSCALELOAD in LAW70? As per my understanding, If I input a set of stress strain data into the function and give the scale factor as 1, the values remain same and if I mention the scale factor as 1.5, all the stress strain data will be increased by 20%? Am I correct? Why does the units of FSCALELOAD is 'Pa' if its just a factor? Is it possible to scale only Abscissa or Ordinate?

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2017

    Hi,

    Good catch. It;s only a scale factor and mistakenly units were given.

     

  • Ushay
    Ushay Altair Community Member
    edited November 2017

    Hi George,

    If I input a set of stress strain data into the function and give the scale factor as 1, the values remain same and if I mention the scale factor as 1.5, all the stress and strain data will be increased by 20%, am I correct? Is it possible to scale only Abscissa or Ordinate?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2017

    Hi Ushay,

    Fscale is the scale factor for the vertical axis of the curve given, that is it will scale the function's ordinate (Y) value.

    To be more clear the Fscale scales the Ordinate which is the stress part of the stress strain curve.These is no way to scale the strain. 

    And regarding your math, if you are using 1.5 as Fscale, this would scale the stress value by 50% compared to old values.

     

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