基于S-R和分解定理的三维几何非线性无网格法
宋彦琦, 周涛
THREE-DIMENSIONAL GEOMETRIC NONLINEARITY ELEMENT-FREE METHOD BASED ON S-R DECOMPOSITION THEOREM
Song Yanqi, Zhou Tao
表1
本文三维SR-EFG的必要参数设定
Table 1
The essential parameters for 3D-SR-EFG
Name
Type
nodes distributions
regular nodes
influence domain
sphere: scaling factor
d
=
2.5
basis functions
linear basis function:
p
T
(
x
)
=
{
1
,
x
1
,
x
2
,
x
3
}
,
m
=
4
u
i
(
x
i
)
=
a
1
(
x
i
)
+
a
2
(
x
i
)
x
i
1
+
a
3
(
x
i
)
x
i
2
+
a
4
(
x
i
)
x
i
3
weight function
CSRBF2:
W
=
0
,
r
>
1
(
1
-
r
)
6
(
6
+
36
r
+
82
r
2
+
72
r
3
+
30
r
4
+
5
r
5
)
,
r
#
x
2264
;
1
numerical integration
Gauss integration:
3
×
3
×
3