Research Square (Research Square),
Год журнала:
2023,
Номер
unknown
Опубликована: Июль 28, 2023
Abstract
The
morphing
characteristics
of
bistable
laminates
embedded
with
4D
printed
shape
memory
polymers
are
investigated.
Bistable
have
potential
applications
in
soft
robotics
due
to
their
two
stable
states
and
ability
deform
through
both
snap-through
snap-back
processes.
For
example,
a
laminate
is
triggered
snap
back
by
pneumatic-actuated
method
that
allows
it
grip
objects.
By
reducing
the
load
increasing
load,
can
be
more
easily
driven
while
maintaining
good
stiffness
its
first
state.
recovery,
A
design
for
suppressing
controlling
deformation
using
proposed
this
paper.
numerical
model
viscoelasticity
established
study
characteristics,
results
compared
experimental
agreement.
effect
on
principal
curvature
also
Finally,
interlayer
interface
bonding
examined
microscopic
perspective.
demonstrate
effectively
enhance
reduce
laminates,
achieving
suppression
control
interlaminar
carbon
fiber
composites.
This
provides
new
insights
practical
significance
active
structures.
Smart Materials and Structures,
Год журнала:
2024,
Номер
33(5), С. 055031 - 055031
Опубликована: Апрель 10, 2024
Abstract
Bistable
laminates
have
potential
applications
in
areas
such
as
buffer
and
soft
robotics
due
to
their
two
stable
states
ability
deform
through
both
snap-through
snap-back
processes.
However,
conventional
orthotropic
bistable
with
state
configurations
snap
loads
are
similar
magnitude.
There
is
a
problem
that
the
deformation
cannot
be
easily
driven
when
laminate
stiffness
high.
To
solve
this
problem,
clever
design
needed
reduce
load
increase
so
can
realized
more
easily.
In
paper,
we
propose
method
suppress
control
of
by
utilizing
shape
memory
3D-printed
polymers
(SMP),
which
enables
while
reducing
driving
force.
First,
numerical
model
viscoelasticity
established
study
its
characteristics,
results
compared
experimental
good
agreement.
The
effect
SMPs
on
principal
curvature
also
investigated.
Finally,
interlayer
interface
bonding
examined
microscopic
perspective.
demonstrate
3D
printed
effectively
enhance
laminates,
achieving
suppression
maintaining
interlaminar
carbon
fiber
composites.
This
provides
new
insights
practical
significance
for
active
structures.
Smart Materials and Structures,
Год журнала:
2023,
Номер
32(9), С. 095036 - 095036
Опубликована: Авг. 8, 2023
Abstract
In
this
study,
a
new
negative
stiffness
metamaterial
is
designed
using
laminates
with
independent
properties
as
the
functional
component
and
discrete
assembly
method.
paper,
by
mathematical
model,
which
has
been
verified
analyzed
systematically
experiment
finite
element
The
influence
of
each
laminate
parameter
on
design
metamaterials
under
uniform
distribution
gradient
was
investigated,
based
this,
load-bearing
capacity
enhancement
strategy
further
explored.
advantages
designability,
solves
defects
previous
performance
constrained
structure
enhances
usability.
