...
Yield,
...
ultimate,
...
and
...
expected
...
stress
...
values
...
are
...
defined
...
on
...
the
...
Material
...
Property
...
Data
...
form.
...
Yield
...
(Fy)
...
and
...
ultimate
...
(Fu)
...
stress
...
values
...
are
...
properties
...
of
...
the
...
material.
...
These
...
values
...
are
...
used
...
in
...
structural
...
design,
...
and
...
in
...
the
...
definition
...
of
...
fiber
...
...
.
Expected yield (Fye)
...
and
...
expected
...
tensile
...
(Fue)
...
stresses
...
are
...
the
...
product
...
of
...
a
...
code-prescribed
...
factor
...
and
...
the
...
expected
...
strength
...
of
...
the
...
material.
...
This
...
factor
...
is
...
typically
...
around
...
1.1,
...
as
...
with
...
FEMA
...
356
...
Table
...
5-3.
...
These
...
effective
...
stress
...
values
...
represent
...
the
...
material
...
response
...
which
...
occurs
...
approximately
...
halfway
...
along
...
the
...
x-axis
...
of
...
the
...
...
relationship.
...
FEMA
...
356
...
recommends
...
using
...
effective
...
strength
...
for
...
deformation-controlled
...
actions.
...
Minimum
...
strength
...
represents
...
the
...
lower
...
bound
...
of
...
...
material
...
response,
...
which
...
is
...
best
...
for
...
force-controlled
...
actions.
...
Expected
...
stress
...
values
...
are
...
used
...
to
...
automatically
...
generate
...
...
properties
...
for
...
...
and
...
P-M
...
hinges.
...
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