Polymer Composites,
Journal Year:
2023,
Volume and Issue:
44(7), P. 3964 - 3976
Published: April 24, 2023
Abstract
The
properties
of
materials
used
in
building
are
enhanced
by
adding
nanoparticles
for
improve
energy
efficiency.
objective
this
study
is
to
offer
both
numerical
and
analytical
modeling
methods
the
thermal
conductivity
mechanical
property
composite
materials.
Various
mineral
charges
were
employed
reinforce
organic
matrices
saturated
polyester
resin
(UPR)
with
calcium
carbonate
(CaCo
3
)
expanded
perlite
particles.
employs
finite‐element
software
COMSOL
conduct
a
investigation
transport
an
elementary
cell.
purpose
ascertain
composites
examine
impact
contact
resistance
volume
fraction
on
effective
conductivity.
results
indicate
that
model
proposed
consistent
Hashin‐Shtrikman
experimental
measurements.
In
another
hand,
computed
based
Mori‐tanaka
homogenization
finite
element
method
Digimat‐MF/FE,
which
gives
elastic
behavior
function
nanoparticles,
high
Young
modulus
low
Poisson
ratio.
performance
improving
thermomechanical
materials,
also
other
applications.
Polymer Composites,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 14, 2024
Abstract
Parts
made
from
carbon
fiber
reinforced
polyetherketoneketone
(CF/PEKK)
primarily
use
mechanical
connections
during
assembly,
where
the
quality
of
hole
processing
directly
impacts
connection
strength.
However,
defects
like
delamination,
burrs,
and
pull‐out
frequently
occur
drilling.
While
existing
research
focuses
on
optimizing
conventional
drilling
(CD)
helical
milling
(HM),
ultrasonic
vibration‐assisted
(UVAD)
shows
superior
performance
in
reducing
thrust
force
defects.
This
study
experimentally
evaluates
hole‐making
CF/PEKK
using
UVAD
method.
It
examines
effects
vibration
force,
temperature,
damage,
chip
morphology,
surface
microstructure,
discusses
damage
suppression
mechanism.
The
results
show
that
method
significantly
reduces
temperature
compared
to
CD
method,
with
similar
trends
delamination
burr
damage.
demonstrates
for
laminates
effectively
machining
thereby
improving
quality.
material
removal
mechanism
was
analyzed,
offering
substantial
insights
practical
guidance
efficient
laminates.
Highlights
studied.
is
by
experiments.
has
a
lower
temperature.
can
reduce
improve
Composites Science and Technology,
Journal Year:
2022,
Volume and Issue:
232, P. 109846 - 109846
Published: Nov. 17, 2022
Tow-Based
Discontinuous
Composites
(TBDCs)
combine
high
manufacturability
with
good
mechanical
properties.This
work
presents
a
novel
3D
approach
for
the
numerical
modelling
of
TBDCs.The
framework
generates
orientation
tensors
by
adding
stochastic
component
to
deterministically
predicted
process
simulation.The
actual
TBDCs
are
thus
idealised
as
Equivalent
Laminates
(ELs),
resulting
from
these
tensors.A
physically
based
failure
criterion
is
presented
prediction
initiation
ELs.The
consequent
stiffness
reduction
captured
ply-discount
method.The
validated
two
materials,
different
moulding
conditions
and
amounts
in-mould
flow.The
proposed
accurately
predicts
characteristic
variability
materials.As
consequence,
strength
was
in
agreement
experimental
results
both
materials
tested.
Polymer Composites,
Journal Year:
2023,
Volume and Issue:
44(7), P. 3964 - 3976
Published: April 24, 2023
Abstract
The
properties
of
materials
used
in
building
are
enhanced
by
adding
nanoparticles
for
improve
energy
efficiency.
objective
this
study
is
to
offer
both
numerical
and
analytical
modeling
methods
the
thermal
conductivity
mechanical
property
composite
materials.
Various
mineral
charges
were
employed
reinforce
organic
matrices
saturated
polyester
resin
(UPR)
with
calcium
carbonate
(CaCo
3
)
expanded
perlite
particles.
employs
finite‐element
software
COMSOL
conduct
a
investigation
transport
an
elementary
cell.
purpose
ascertain
composites
examine
impact
contact
resistance
volume
fraction
on
effective
conductivity.
results
indicate
that
model
proposed
consistent
Hashin‐Shtrikman
experimental
measurements.
In
another
hand,
computed
based
Mori‐tanaka
homogenization
finite
element
method
Digimat‐MF/FE,
which
gives
elastic
behavior
function
nanoparticles,
high
Young
modulus
low
Poisson
ratio.
performance
improving
thermomechanical
materials,
also
other
applications.
