Shear Modulus

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  • January 23, 2015 at 10:12 pm #41773
    Bob Wood
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    Ay opinions on the correct value to use for G10 shear modulus in fin flutter equations?

    I note some decent discrepancies between values used by Zachary Howard (c/o Apogee and their article on fin flutter speeds), values used by Duncan McDonald in his spreadsheet of ~ 2001, and in various material data sheets. That spread in values runs from 380000 psi on the low side to 2200000 psi on the high side, which nets a pretty big (7.6:1) difference in flutter boundary equation values …

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