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Deflection calculation maybe wrong?

Discussion in 'OpenBuilds Bug Report' started by Art melanson, Dec 5, 2017.

  1. Art melanson

    Builder

    Joined:
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    Hello.
    I have tried your deflection calculation and cannot get the same results as I get in other calculators.

    It seems your deflections are 10 times too high.

    you do not put your units in so it is hard for me to confirm which calculator is right.

    I believe the issue is with your conversion of I.

    For instance: simple beam deflection calculation.
    for the 40x40 beam I= 81.407 cm^4 (i assume units)

    Your speadsheet converts this to

    Inertia on X : 8.141E-08 m^4 (i assume units again)

    my conversion would be to 8.14E-07 m^4 or 81.4E-08


    Am I missing something??
     
    #1 Art melanson, Dec 5, 2017
    Last edited by a moderator: Dec 15, 2017
  2. Mark Carew

    Mark Carew OpenBuilds Team
    Staff Member Moderator Resident Builder Project Maker Builder

    Joined:
    Jun 28, 2013
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    MaryD likes this.

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