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Thread: How to get outpu?

  1. #1
    Join Date
    Sep 2019
    Posts
    12

    Default How to get outpu?

    I compressed a cube and wanted to take the Cauchy stress from it, when I checked for output I got MAX MIN and AVERAGE stress for z-stress.
    But in my experimental data i only have one stress so which should I consider MAX or MIN or AVERAGE for comparing FEBio data with experimental data?

  2. #2
    Join Date
    Nov 2007
    Location
    Salt Lake City, UTAH
    Posts
    2,056

    Default

    Hi,

    In general the stress will be a position dependent field, which will be difficult to measure experimentally. I suspect that the average will be closer to what you would measure experimentally, but it's difficult to say. How did you obtain the experimental value? Perhaps by measuring a force and dividing by the area? If so, I suggest that you replicate this process on the computational model. You can output the nodal reaction forces, sum them all up, and then divide by area.

    Cheers,

    Steve
    Department of Bioengineering, University of Utah
    Scientific Computing and Imaging institute, University of Utah

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