<s>
A	O
finite	B-Algorithm
element	I-Algorithm
limit	I-Algorithm
analysis	I-Algorithm
(	O
FELA	O
)	O
uses	O
optimisation	O
techniques	O
to	O
directly	O
compute	O
the	O
upper	O
or	O
lower	O
bound	O
plastic	O
collapse	O
load	O
(	O
or	O
limit	O
load	O
)	O
for	O
a	O
mechanical	O
system	O
rather	O
than	O
time	O
stepping	O
to	O
a	O
collapse	O
load	O
,	O
as	O
might	O
be	O
undertaken	O
with	O
conventional	O
non-linear	O
finite	B-Application
element	I-Application
techniques	O
.	O
</s>
<s>
An	O
alternative	O
technique	O
which	O
may	O
be	O
used	O
to	O
undertake	O
similar	O
direct	O
plastic	O
collapse	O
computations	O
using	O
optimization	O
is	O
Discontinuity	B-Algorithm
layout	I-Algorithm
optimization	I-Algorithm
.	O
</s>
