Biomedical Engineering Reference
In-Depth Information
Fig. 5.35 Medium shear
stress r
XY
errors obtained for
the: a regular nodal
distribution; b irregular nodal
distribution. Logarithmic
scales
(a)
(b)
shear stress r
xy
in the same interest line, x ¼ 0
^
y
2
½0
;
D
, is presented in
Fig.
5.44
b. The solution obtained with the NNRPIM and the RPIM is compared
with the FEM solution and the analytical solution. In Fig.
5.44
a, b it is possible to
observe that the NNRPIM stress field is very close with the analytical solution.
Notice that the NNRPIM stress field is always smoother and more accurate than
the RPIM. In Fig.
5.45
it is presented the displacement field and the stress field
distributions for the whole problem domain X
2
. Once again it is possible to
confirm that the NNRPIM produces smooth variable fields.
R
