writing active contraction parameters to feb file - bug?

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  • njeffery
    Member
    • Sep 2011
    • 37

    writing active contraction parameters to feb file - bug?

    Hi All,
    I have been looking at the muscle and trans iso Mooney-Rivlin materials. Some variables that I define in Preview (1.12.0 & 1.12.1 & feb exported as v1.2 and v1.3) fail to appear in the resulting .feb file? For example, if you input the values for trans iso Mooney-Rivlin material as given on p77 of the FEBio manual, you should get:

    <material id="3" type="trans iso Mooney-Rivlin">
    <c1>13.85</c1>
    <c2>0.0</c2>
    <c3>2.07</c3>
    <c4>61.44</c4>
    <c5>640.7</c5>
    <k>100.0</k>
    <lam_max>1.03</lam_max>
    <fiber type="vector">1,0,0</fiber>
    <active_contraction lc="1">
    <ca0>4.35</ca0>
    <beta>4.75</beta>
    <l0>1.58</l0>
    <refl>2.04</refl>
    </active_contraction>
    </material>

    However, if you input these into Preview and export the feb, everything after "</fiber>" is lost? Same happens with muscle.

    I think it is something to do with the definition of active contraction.

    Any ideas? Easy solution is to edit the text file directly, but was wondering if I was doing anything completely wrong

    n
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