Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications,
Год журнала:
2024,
Номер
238(10), С. 1929 - 1941
Опубликована: Март 6, 2024
The
exceptional
mechanical
properties,
dimensional
stability
and
low
cost
of
production
textile
composites
have
made
them
quite
popular
in
recent
years.
In
the
present
analysis,
plain
woven
inter,
intra
hybrid
carbon
E-glass
fibre
reinforced
incorporated
with
or
without
nano-coconut
shell
ash
(CSA)
as
filler
were
manufactured
by
hand
lay-up
method.
thermal
properties
determined
for
composites.
Simultaneously,
fractographic
study
was
conducted
scanning
electron
microscopy
to
predict
different
kind
failures
found
be
significantly
better
when
2
wt.%
CSA
substituted
it.
inter-hybrid
composite
containing
nanofiller
demonstrated
highest
tensile
strength
245.96
MPa,
flexural
496.03
MPa
maximum
degradation
temperature
weight
change
81.08%.
A
combination
intra-
revealed
impact
resistance
3.3
J.
pseudo-ductile
performance
intra-hybrid
is
also
distinctly
observed,
showing
moderate
stress
299.376
elongation
5.137
mm.
current
scientific
effort
makes
it
clear
that
greatest
obtained
positioning
fibres
inside
glass
outside.
surface
proximity
diffusion
nanofillers
further
enhanced
their
properties.
Shear
dispersion
led
energy
absorption
need
case
inter-woven
Mechanics of Advanced Materials and Structures,
Год журнала:
2023,
Номер
31(26), С. 7853 - 7869
Опубликована: Авг. 28, 2023
AbstractIn
the
existing
paper,
thermo-mechanical
buckling
performance
of
three-layered
advanced
fluid-infiltrated
porous
shells
that
are
embedded
between
two
GPLs-reinforced
composite
layers
is
investigated.
The
influence
fluids
in
pores
investigated
using
Skempton
coefficient.
Imperfection
types
and
ratio
effects
also
considered.
Moreover,
for
face
layers,
Graphene
nanoplatelets
(GPLs)
weight
fraction
dispersion
patterns
studied.
After
deriving
governing
equations
employing
virtual
displacement
method,
they
solved
analytically
via
Navier's
approach.
Finally,
impact
different
factors
on
critical
loads
(CBLs)
temperatures
(CBTs)
cylindrical,
spherical,
doubly-curved
assessed.Keywords:
nanoplateletsfluid-infiltrated
materialsthermo-elastic
bucklingfirst-order
shear
deformation
theorydoubly-curved
shellsandwich
structures
Disclosure
statementThe
authors
state
there
no
conflict
interest
them
to
disclose.
Mechanics Based Design of Structures and Machines,
Год журнала:
2024,
Номер
52(9), С. 6911 - 6972
Опубликована: Янв. 8, 2024
Lately,
metal
foams
have
been
widely
used
in
various
engineering
structures
due
to
their
exceptional
mechanical
properties,
including
lightweight.
However,
scientists
proposed
adding
nano-fillers
like
graphene
nanoplatelets
(GNPs)
overcome
the
issue
of
low
stiffness
caused
by
increased
porosity.
Hence,
aerodynamic
stability
and
vibrational
behaviors
nanocomposite
(NCMF)-reinforced
GNPs
sector
microplate
with
piezoelectric/metallic
face
sheets
are
provided
this
work.
The
microstructure
is
sited
on
Kerr
elastic
substrate
also
a
hygro-thermo-electrical
media,
subjected
supersonic
flow
based
first-order
piston's
theory
(FPT).
Gaussian
random
field
(GRF),
Halpin-Tsai,
extended
rule
mixture
(ERM)
conjunction
Gurtin-Morduch,
modified
strain
gradient
theories,
Hamilton's
principle
derive
governing
equations
linked
boundary
conditions.
Generalized
differential
quadrature
(GDQ)
scheme
chosen
attain
results.
By
validating
results'
precision,
effects
different
parameters
natural
frequencies
(NFs)
critical
pressures
(CAPs)
observed.
It
perceived
that
enhances
both
NFs
CAPs
significantly,
increasing
porosity
up
seventy
percent,
leads
results
drop.
Various
industries
use
simpler
models
evaluate
microstructure,
therefore
present
model
can
pave
way
for
future
uses
push
boundaries
knowledge
these
it
produces.
Mechanics Based Design of Structures and Machines,
Год журнала:
2024,
Номер
52(11), С. 9122 - 9143
Опубликована: Апрель 10, 2024
Flexoelectricity
indicates
a
unique
characteristic
of
insulators
and
dielectric
materials
that
results
in
electrical
polarization
induction
response
to
the
non-uniform
strain
gradient.
The
impact
this
property
is
bolder
on
microscale
nanoscale
rather
than
macroscale.
This
article
conducted
derive
governing
equations
motion
for
flexoelectric-multilayer
structure
evaluate
its
vibrational
behavior
various
variable
variations.
model
includes
functionally
graded
(FG)
porous
core
which
confined
between
two
flexoelectricity-based
face
sheets
at
both
sides
Vlasov
type
foundation.
To
gain
equations,
new
power
law
material
beside
Hamilton's
principle
(HP)
modified
couple
stress
theory
(MCST)
implemented.
Capturing
effects
length
scale
parameter,
different
materials,
aspect
thickness
ratios,
porosity
index,
foundation
parameter
boundary
conditions
(B.C.s)
normalized
natural
frequency
(NNF)
such
multilayer
based
novel
FG
formulation
serve
as
main
novelty
article.
According
results,
it
revealed
lateral
ratio
enhancement
causes
NNF
stiffness
reduction
model.
Furthermore,
among
all
considered
B.C.s,
simply
support
(SSSS)
clamped
(CCCC)
refer
lowest
highest
respectively.
content
recent
serves
good
source
provide
better
understanding
high
stiffness-to-weight
structures
