<s>
Smoothed	B-Algorithm
finite	I-Algorithm
element	I-Algorithm
methods	I-Algorithm
(	O
S-FEM	O
)	O
are	O
a	O
particular	O
class	O
of	O
numerical	B-General_Concept
simulation	I-General_Concept
algorithms	I-General_Concept
for	O
the	O
simulation	O
of	O
physical	O
phenomena	O
.	O
</s>
<s>
It	O
was	O
developed	O
by	O
combining	O
meshfree	B-Algorithm
methods	I-Algorithm
with	O
the	O
finite	B-Application
element	I-Application
method	I-Application
.	O
</s>
<s>
The	O
essential	O
idea	O
in	O
the	O
S-FEM	O
is	O
to	O
use	O
a	O
finite	B-Application
element	I-Application
mesh	O
(	O
in	O
particular	O
triangular	O
mesh	O
)	O
to	O
construct	O
numerical	O
models	O
of	O
good	O
performance	O
.	O
</s>
<s>
A	O
comprehensive	O
review	O
of	O
S-FEM	O
covering	O
both	O
methodology	O
and	O
applications	O
can	O
be	O
found	O
in	O
(	O
"	O
Smoothed	B-Algorithm
Finite	I-Algorithm
Element	I-Algorithm
Methods	I-Algorithm
(	O
S-FEM	O
)	O
:	O
An	O
Overview	O
and	O
Recent	O
Developments	O
"	O
)	O
.	O
</s>
<s>
The	O
development	O
of	O
S-FEM	O
started	O
from	O
the	O
works	O
on	O
meshfree	B-Algorithm
methods	I-Algorithm
,	O
where	O
the	O
so-called	O
weakened	O
weak	O
(	O
W2	O
)	O
formulation	O
based	O
on	O
the	O
G	O
space	O
theory	O
were	O
developed	O
.	O
</s>
