Frontiers in Materials,
Год журнала:
2024,
Номер
11
Опубликована: Март 1, 2024
In
this
research,
free
vibration
characteristics
of
functionally
graded
metal
foam
doubly
curved
panels
reinforced
with
graphene
platelets
and
porosities
have
been
surveyed.
Halpin
Tsai's
approach
is
utilized
for
extracting
the
effective
Young
modulus
porous
nanocomposite
also
density
shell
panel
estimated
by
using
an
extended
rule
mixture.
The
FSDT
hypothesis
determining
displacement
field
Finite
element
Hamilton
principle
are
deriving
mass
stiffness
matrices
structure.
Finally,
influences
several
variables
such
as
porosity
distribution,
coefficient,
GPL
dispersion
pattern,
weight
fraction
Nanofillers,
span
angles
on
vibrations
FG
platelet
reported
in
detail.
Mechanics of Advanced Materials and Structures,
Год журнала:
2022,
Номер
30(19), С. 4016 - 4027
Опубликована: Июнь 14, 2022
The
present
research
proposes
an
applicable
and
impressive
analytical
model
of
Aircraft
Engine
Cowl
(AEC)
due
to
auspicate
its
frequency
parameter.
For
the
first
time,
authors
configured
structure
AEC
by
joining
two
well-known
shapes
shell,
including
elliptical
conical.
This
procedure
is
implemented
obtaining
governing
motion
organization
differential
equations
affiliated
with
Joined
Elliptical-Conical
Shells
(JECS)
in
line
first-order
shear
deformation
theory
(FSDT)
General
Shell
Formulation
(GSF).
Moreover,
Functionally
Graded
Materials
(FGMs)
various
spreading
forms
along
structure’s
thickness
are
used
enhance
dynamic
performance
AEC.
It
worth
mentioning
that
recognized
Rule
Mixture
(RM)
engaged
for
achieving
equivalent
mechanical
characteristics
FGM.
Finally,
a
semi-analytical
Generalized
Differential
Quadrature
(GDQ)
hired
extract
resulting
system
access
free
vibration
responses
diverse
Boundary
Conditions
(BCs).
interesting
numerical
done
inspect
remnants
geometric
material
features
on
oscillation
demeanor
structures.
will
be
verified
projected
can
helpful
AEC’s
analysis
extendable
other
types
studies
predict
structure's
static
treatment.
Numerical Heat Transfer Part A Applications,
Год журнала:
2024,
Номер
unknown, С. 1 - 22
Опубликована: Март 18, 2024
This
study
addresses
the
issue
of
thermal
stresses
and
strains
in
a
thin-walled
conical
shell
subjected
to
uniform
heat
flow
along
its
side
surfaces
at
both
ends
insulation
shell.
The
governing
equations
are
derived
using
semi-coupled
static
thermoelastic
equation
an
energy
equation.
ignores
strain
rate
effects,
but
behavior
consider
temperature
variations
axisymmetric
shells.
Semicoupled
methods,
due
their
simpler
analysis,
suitable
for
stress
analysis
when
structural
disturbances
differ
significantly.
To
obtain
solutions,
Galerkin
finite
element
method
is
employed,
yielding
valuable
insights.
Using
reduced
weight
residual
method,
sum
residuals
on
thickness
set
zero.
Through
comprehensive
problem-solving
approach,
effects
increasing
angle
cone
apex
different
boundary
conditions
investigated
two
one-ended
two-ended
cases.
