...
The
...
...
...
automatically
...
generates
...
concrete
...
stress-strain
...
curves
...
.
...
By
...
default,
...
these
...
curves
...
do
...
not
...
provide
...
tensile
...
strength.
...
Stress-strain
...
curves
...
may
...
be
...
reviewed
...
within
...
the
...
Section
...
Designer
...
by
...
using
...
the
...
concrete-model
...
View
...
controls.
...
To
...
model
...
the
...
tensile
...
strength
...
of
...
concrete,
...
a
...
material
...
stress-strain
...
curve
...
may
...
be
...
converted
...
into
...
a
...
user-defined
...
constitutive
...
model
...
by
...
selecting
...
Define
...
>
...
Materials.
...
A
...
separate
...
material
...
must
...
be
...
created
...
for
...
each
...
Mander
...
confinement
...
state.
...
Then
...
the
...
Section
...
Designer
...
will
...
apply
...
this
...
user-defined
...
curve.
...
For
...
parametric
...
Mander
...
material,
...
an
...
option
...
which
...
is
...
not
...
user-defined,
...
stress-strain
...
curves
...
are
...
automatically
...
computed,
...
though
...
tensile
...
strength
...
is
...
not
...
recognized.
...
How can I adjust the shear stress-strain
...
curve?
...
Extended
...
Question:
...
I
...
have
...
defined
...
the
...
...
constitutive
...
relationships
...
for
...
an
...
isotropic
...
concrete
...
material.
...
How
...
do
...
I
...
set
...
a
...
specific
...
maximum
...
shear-stress
...
capacity?
...
Answer:
...
For
...
response,
...
please
...
refer
...
to
...
the
...
...
...
...
(Nonlinear
...
Material
...
Behavior
...
>
...
Shear,
...
page
...
82).
...
Further,
...
a
...
...
...
object
...
may
...
be
...
created
...
in
...
which
...
individual
...
layers
...
represent
...
pure
...
shear
...
and
...
pure
...
axial
...
behaviors.
...
Different
...
material
...
properties
...
may
...
be
...
assigned
...
to
...
each
...
layer
...
and
...
its
...
local
...
mechanical
...
behavior.
...