When applying a pressure load, is the magnitude value the total amount of force applied or the force to be applied to each element?

Katherine Uvick
Katherine Uvick Altair Community Member
edited October 2020 in Community Q&A

I am working on a university project. I need to apply a total load of 6kN across a seat belt uniformly. To do this I was using the pressure function. For the magnitude, do I input 6kN? Or do I need to calculate the number of elements and enter 6kN/#elements? I am not sure if the magnitude is the total force or the force to be applied to each element. See below. Thanks. 

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Answers

  • Q.Nguyen-Dai
    Q.Nguyen-Dai Altair Community Member
    edited October 2020

    In Pressure panel, when you apply a magnitude -6000.0 (as picture) so each element will be applied a pressure of -6000.0 (in pressure unit, depending to your working system unit).

    The correct way is computing firstly the pressure :

    pressure = total force / area

    In your case: total force = 6 kN

    Area can be mesured by "mass calc".

    NEVER compute the pressure by dividing the total force by element number! It's WRONG!

     

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