Prove the statement above, that if the potential energy of the system is quadratic, of the form
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Prove the statement above, that if the potential energy of the system is quadratic, of the form
then the elastic constant matrix Cijlm must be symmetric with respect to interchanging the first two indices with the last two indices.
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U V = Σσίες, (3.4.18)
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By definition of the elastic tensor ie if we expand the ...View the full answer
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