Defence Technology,
Journal Year:
2024,
Volume and Issue:
41, P. 159 - 180
Published: June 13, 2024
For
the
first
time,
isogeometric
analysis
(IGA)
approach
is
used
to
model
and
analyze
free
forced
vibrations
of
doubly-curved
magneto-electro-elastic
(MEE)
composite
shallow
shell
resting
on
visco-Pasternak
foundation
in
a
hygro-temperature
environment.
The
MEE
types
include
spherical
shell,
cylindrical
saddle
elliptical
subjected
blast
load
are
investigated.
Maxwell
equation
electromagnetic
boundary
conditions
determine
vary
electric
magnetic
potentials.
shell's
equations
motion
derived
from
Hamilton's
principle
refined
higher-order
shear
theory.
Then,
IGA
method
derive
laws
natural
frequencies
dynamic
responses
under
various
conditions.
accuracy
verified
through
reliable
numerical
comparisons.
Aside
this,
impact
input
parameters
vibration
examined
detail.
These
results
may
be
useful
design
manufacture
military
structures
such
as
warships,
fighter
aircraft,
drones
missiles.
Engineering Science and Technology an International Journal,
Journal Year:
2024,
Volume and Issue:
54, P. 101715 - 101715
Published: May 21, 2024
In
this
work,
free
vibration
and
transient
response
of
porous
metal
foam
magneto-electro-elastic
(PMF-MEE)
curved
nanobeam
with
elastic
boundary
conditions
(BCs)
using
an
isogeometric
analysis
(IGA)
based
on
nonlocal
refined
higher-order
shear
beam
theories
(HSDT)
are
investigated.
The
variation
electric
magnetic
potentials
through
the
thickness
direction
is
determined
by
Maxwell
equation
magneto-electric
condition.
new
point
paper
that
it
does
not
use
traditional
conditions,
but
instead,
first
last
positions
linked
system
consisting
transrational
springs
rotational
stiffness
controlled
to
give
arbitrary
conditions.
Besides,
coefficients
vary
like
other
material
properties.
Hamilton's
principle
applied
establish
governing
equations
motion.
Newmark
direct
integration
method
derive
dynamic
responses
including
deflection
phase
trajectory.
A
comprehensive
parametric
study
carried
out
evaluate
influence
input
factors
natural
forced
oscillation
capabilities
PMF-MEE
nanobeams.
findings
may
benefit
for
design
intelligent
structures
made
materials.
Journal of Vibration and Control,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 12, 2025
This
paper
presents
the
nonlinear
chaotic
mechanical
model
for
magneto-electric
elastic
(MEE)
laminated
nanoplates,
with
flexomagnetoelectric
(FME)
effect,
subjected
to
multi-physical
field
excitation.
Utilizing
high-order
shear
deformation
theory
(HSDT),
Hamilton’s
principle,
and
strain-displacement
relationships
from
von
Karman’s
theory,
governing
equations
system
are
derived.
The
application
of
nonlocal
strain
gradient
(NSGT)
facilitates
consideration
size
effect
in
system.
employment
Airy
stress
function
manages
nonlinear-nonlocal
terms
control
equation.
accurate
solution
approach
is
ultimately
formulated
by
combining
dual-mode
Galerkin
method
fourth-order
Runge-Kutta
method.
outcomes
indicate
that
behavior
MEE
nanoplates
substantially
affected
FME
hygrothermal
conditions,
electromagnetic
field.
research
conducted
this
intends
offer
comprehensive
theoretical
basis
utilization
nanomaterials
industrial
engineering,
alongside
derivation
criteria
essential
mitigating
controlling
behaviors
within
