void
IsotropicElasticityTensor::calculateEntries(unsigned int /*qp*/)
{
calculateLameCoefficients();
unsigned int i, j, k, l;
i = j = k = l = 0;
// Walk down the columns of the 9x9 matrix
for (unsigned int q = 0; q < 81; ++q)
{
// This algorithm was developed by Derek Gaston and Cody Permann
// it's based on page 29 of Michael Tonk's notes
j += i / 3;
k += j / 3;
l += k / 3;
i %= 3;
j %= 3;
k %= 3;
l %= 3;
_values[q] = isotropicEntry(i, j, k, l);
++i;
}
}
void
SymmIsotropicElasticityTensor::calculateEntries(unsigned int /*qp*/)
{
calculateLameCoefficients();
const Real C12(_lambda);
const Real C44(_mu);
const Real C11(2*C44+C12);
setEntries( C11, C12, C44 );
}