Mechanics of Advanced Materials and Structures,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 13
Published: April 1, 2024
This
study
investigates
the
impact
of
interfacial
imperfection
on
shear
horizontal
wave
propagation
in
a
microstructural
coupled
stress
half-space
beneath
porous
piezoelectric
layer
adjacent
to
air.
The
validity
dispersion
relations
is
shown
by
deriving
special
cases
and
comparing
them
with
classical
relation
Love
wave.
Furthermore,
comparative
analysis
has
been
conducted
analyze
effect
various
parameters
phase
velocity
considering
perfect
imperfect
interfaces
under
electrically
open
short
conditions.
findings
provide
theoretical
framework
for
developing
designing
underwater
acoustic
devices
sensing
nondestructive
testing.
Mechanics of Advanced Materials and Structures,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 22
Published: Feb. 16, 2025
The
current
work
aims
to
theoretically
investigate
the
surface–interface
effects
on
circumferential
antiplane
surface
wave
through
a
thin
piezoelectric
(PE)
layer
cylindrical
structure.
elasticity
has
been
formulated
in
coordinate
system
for
PE
material.
Along
with
parameters
such
as
and
density,
charges
are
also
considered.
material
properties
considered
heterogeneous
make
model
realistic.
dispersion
equation
shear
obtained
analytically
closed
form
electrically
short
open
cases
using
Bessel's
function.
of
essential
behavior
parameters,
coupling
parameter
radii
ratio,
heterogeneity
parameter,
prestress,
have
illustrated
numerical
simulation
graphs.
Each
graph
displayed
lowest
two
modes
facilitate
thorough
interpretation
dispersion.
Three-dimensional
plots
provided
interpret
field
variables.
It
found
that
size-dependent
sensitive
relation
only
when
is
thin.
study
findings
could
help
develop
nano/microsized
transducers
sensors.
Mechanics of Advanced Materials and Structures,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 14
Published: Jan. 21, 2025
This
study
highlights
the
essential
role
of
surface-interface
characteristics
and
nonlocal
elasticity
in
nondestructive
detection
for
piezoelectric-piezomagnetic
nanostructures.
It
investigates
Lamb
wave
propagation
layered
structures
under
elasticity,
using
magnetoelectroelastic
(MEE)
theory
with
intrinsic
length
scales.
The
Gurtin–Murdoch
model
generalized
Young–Laplace
equations
incorporate
surface
effects
bilayer
boundaries,
yielding
an
analytical
dispersion
equation
EOMS
conditions.
Numerical
results
reveal
influence
surface/interface
nonlocal,
thickness
parameters
on
dispersion.
By
incorporating
effects,
this
enhances
sensitivity
waves,
providing
a
deeper
understanding
systems.
