examples/platewithhole.py

nelems=9 Number of elements along edge.
etype=mixed Type of elements (square/triangle/mixed).
btype=std Type of basis function (std/spline), with availability depending on the selected element type.
degree=2 Polynomial degree.
traction=.1 Far field traction (relative to Young's modulus).
maxrefine=2 Number or refinement levels used for the finite cell method.
radius=.5 Cut-out radius.
poisson=.3 Poisson's ratio, nonnegative and strictly smaller than 1/2.

integrating 1+1 distinct blocks

optimize

topology 1/1

integrating 1+1+1 distinct blocks

constrained 22/618 dofs

optimum value 0.00e+00

optimize

topology 1/1

integrating 1+2+1 distinct blocks

solve

solving 72 dof system to machine precision using direct solver

refinement iteration 1

residual decreased to 1e-17

refinement iteration 2

residual decreased to 8e-18

refinement iteration 3

residual increased to 1e-17 (discarding)

solver returned with residual 8e-18

constrained 94/618 dofs

optimum value 1.32e-11

topology 1/1

integrating 1+1 distinct blocks

solve

solving 524 dof system to machine precision using direct solver

refinement iteration 1

residual decreased to 6e-16

refinement iteration 2

residual decreased to 5e-16

refinement iteration 3

residual decreased to 5e-16

refinement iteration 4

residual decreased to 5e-16

refinement iteration 5

residual increased to 5e-16 (discarding)

solver returned with residual 5e-16

topology 1/1

integrating 1 distinct blocks

errors: L2=2.75e-05, H1=1.82e-03