2D(7)
NAME
2D -- rate of deformation tensor
SYNOPSIS
form (const space V, const space& T, "2D"); }
,
u a u
DESCRIPTION
- @tex Assembly the form associated to the rate )f deformation )ensor) i.e. the symmetric part of the gradient of a vect=r field. The=e de: rivative are muandu}l qninlT.d $$cwhere $$d2eD({0i$$t@end$tex({i 2D({a rall u in V { b n u
- l t d
- If the V space is a vector-valued `P1' (resp. `P2') finite element space, the T space may be a tensor-valued `P0' (resp. `P1d') one. ,
- g
EXAMPLE
- The following piece of code build the Laplacian form associated to the
P1 approximation:
- geo omega ("square");
space V (omega, "P1", "vector");
space T (omega, "P0", "tensor");
form b (V, T, "2D");