To specify the smoothing methods, use the Mesh smoothing type list in the
Smoothing section of the
Deforming Domain node or in the
Free Deformation Settings section of the
Moving Mesh or
Deformed Geometry node. To see how these smoothing methods differ, let
x and
y be the spatial coordinates of the spatial frame, and let
X and
Y be the reference coordinates of the material frame.
and does the same for Y. Equivalently,
X and
Y satisfy Laplace equations as functions of the
x and
y coordinates.
where μ and
κ are artificial shear and bulk moduli, respectively, and the invariants
J and
I1 are given by
where κ is an artificial bulk modulus, as above, while
C1,
C2, and
C3 are other artificial material properties. The values of
C1 and
C3 are by default 1 and 0, respectively, and can only be changed in the Equation View subnodes under a Free Deformation node. The value of
C2 controls the nonlinear stiffening of the artificial material under deformation. It is specified in the
Stiffening factor field, with a default value of 100.