On 11 Mar 2008, meg@xxxxxxxxxxx wrote:
After diving into some non-linear elasticity, I've suddenly the need to
do u^k, that is u to the power k, where u is some Function and k is
an arbitrary natural number.
I actually need this when k is not an integer which means that it cannot
be done exactly, even with enough quadrature points. For the case when
k is an integer greater than 2, it is likely not desirable to perform
the integration exactly because it entails too many quadrature points
(perhaps for k=2 as well) so my understanding is that you must make a
separate form to computes the nonlinear part.
