A New Locking-Free Thick/Thin Shell Element
113
0
100
200
300
400
500
600
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.10
w
Quantity of the elements
SEIA
Mixed
XSHELL41
XSHELL42
QCS1
QCS2
Fig. 15. Convergence of w for the hemispherical shell with a top hole
Fig. 16. Construction and geometry of the spiral cylindrical shell
The model and mesh are shown in Fig. 17. Sides z = 0 and z = 50π are fixed.
Table 7 lists the transverse displacement w at the central point. The results demonstrate
the good convergence and high accuracy of the SEIA.
113
0
100
200
300
400
500
600
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.10
w
Quantity of the elements
SEIA
Mixed
XSHELL41
XSHELL42
QCS1
QCS2
Fig. 15. Convergence of w for the hemispherical shell with a top hole
Fig. 16. Construction and geometry of the spiral cylindrical shell
The model and mesh are shown in Fig. 17. Sides z = 0 and z = 50π are fixed.
Table 7 lists the transverse displacement w at the central point. The results demonstrate
the good convergence and high accuracy of the SEIA.