Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Dec. 2, 2024
Abstract
Structural
advancements
in
underwater
vehicle
design
necessitate
lightweight
materials,
driving
interest
Fiber
Metal
Laminates
(FMLs),
known
for
their
high
specific
strength,
stiffness,
and
corrosion
resistance.
This
study
investigates
the
vibration
response
of
FMLs
through
combined
experimental
numerical
analyses,
specifically
evaluating
novel
effects
layerwise
acoustic
impedance
matching
on
damping
within
0-500
Hz
frequency
range,
which
aligns
with
ocean
current
frequencies.
Various
FML
stackup
sequences
were
characterized
ASTM
E756-05
compliant
experiments
ANSYS
Harmonic
Response
simulations.
Notably,
introduction
paperboard-epoxy
ply
results
a
rightward
shift
natural
frequencies,
while
exclusion
metallic
face
leads
to
leftward
across
different
stackups.
Moderate
agreement
between
material
modulus
highlights
robustness
our
findings.
Overall,
this
provides
valuable
insights
leveraging
submersible
hulls,
underscoring
potential
enhanced
vibration-damping
characteristics
marine
environments.
Axioms,
Journal Year:
2025,
Volume and Issue:
14(3), P. 172 - 172
Published: Feb. 27, 2025
This
research
is
based
on
the
frequency
response
of
angle-ply
laminated
cylindrical
shells
under
higher-order
shear
deformation
theory.
The
theory
used
to
model
displacement
and
rotational
functions,
which
are
approximated
by
cubic
quintic
splines.
eigenvalue
problem
obtained
with
simply
supported
boundary
condition.
analyzed
varying
circumferential
node
number,
length,
number
layers,
layer
alignment.
competence
formulation
verified
comparing
it
available
results
zigzag
PLoS ONE,
Journal Year:
2024,
Volume and Issue:
19(9), P. e0308245 - e0308245
Published: Sept. 6, 2024
In
this
paper,
the
buckling
behaviour
of
rectangular
and
skew
plates
with
elastically
restrained
edges
subjected
to
non-uniform
mechanical
edge
loading
is
investigated.
An
analysis
method
developed
for
calculating
critical
load
using
Ritz
under
loading,
in
which
shape
function
expressed
as
Legendre
polynomials.
The
in-plane
stress
distribution
defined
by
pre-buckling
analysis.
Contributions
elastic
boundary
conditions
are
taken
into
accounted
giving
different
spring
stiffnesses.
proposed
validated
comparison
exiting
results
literature.
Finally,
effects
stiffness,
angle,
aspect
ratio
combined
compression-shear
discussed
parametric
