Mechanics of Advanced Materials and Structures,
Год журнала:
2022,
Номер
30(13), С. 2651 - 2667
Опубликована: Апрель 25, 2022
In
this
article,
the
static
and
dynamic
coupling
hygro-electro-mechanical
(CHEM)
multifield
problems
of
piezoelectric
structures
are
investigated
via
stabilized
node-based
smoothed
radial
point
interpolation
method
(SNS-RPIM).
The
basic
equations
for
CHEM
derived.
And
responses
calculated
by
SNS-RPIM
finite
element
method.
Through
numerical
examples,
superiority
proposed
is
also
validated.
These
solutions
indicate
that
increase
moisture
concentration
makes
model
softer
decreases
structural
stiffness
when
considering
dependence
elastic
coefficients,
which
leads
to
decrease
frequency
variation
displacement.
Waves in Random and Complex Media,
Год журнала:
2021,
Номер
34(2), С. 1017 - 1040
Опубликована: Май 24, 2021
The
goal
of
the
present
research
is
an
investigation
smart
control
and
wave
propagation
examination
a
graphene
nanoplatelets
reinforced
(GPLRC)
cylindrical
micro-shell
covered
with
piezoelectric
layers
as
sensor
actuator
(PLSA)
in
framework
analytical
method.
stress
strain
components
are
given
based
on
first-order
shear
deformable
theory
(FSDT),
for
accessing
size
effects,
nonlocal
gradient
used
obtaining
correct
results.
material
properties
GPLRC
modeled
via
modified
Halpin–Tsai
rule
mixture.
external
voltage
applied
to
layer,
Proportional-Derivative
(PD)
controller
output
control.
governing
equations
electrically
derived
Hamilton's
principle.
This
work
concludes
that
PD
controller,
number,
voltage,
weight
fraction
(GPL)
have
significant
influence
micro-shell.
remarkable
result
consideration
leads
expand
stable
area
improve
dynamic
behaviors
system.
