Comparative Analysis of Metal–Thermoplastic Hybrid Circular Structures Under Quasi-static Lateral Loading: Implications for Crashworthiness
Fibers and Polymers,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 15, 2025
Language: Английский
Innovative, high‐performance, and cost‐effective hybrid composite materials for crashworthiness applications
Polymer Composites,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 28, 2025
Abstract
Integrating
thermoset
and
thermoplastic
materials
in
a
single
structure
is
fascinating
approach,
especially
when
looking
for
optimized
performance
characteristics.
These
advanced
hybrid
structures
can
achieve
levels
of
efficiency,
strength,
resilience
that
are
simply
not
attainable
using
material
type.
Subsequently,
this
work
aims
to
examine
the
deformation
behavior
crashworthiness
performances
square
glass
fiber‐reinforced
epoxy
(GFRE)
composite
tubes
filled
with
3D‐printed
polylactic
acid
(PLA).
To
this,
three
key
3D
printing
design
parameters,
is,
infill
pattern
structure,
density,
layer
height,
were
varied,
each
at
four
levels.
The
subjected
quasi‐static
lateral
compression.
For
tested
tubes,
crashing
load
energy
absorption
responses
recorded
against
displacement,
failure
modes
analyzed.
most
effective
parameter
combination
was
identified
complex
proportional
assessment
(COPRAS)
approach
compared
empty
GFRE
tubes.
Additionally,
cost
ratio
intended
evaluate
economic
feasibility
designed
analysis
concluded
GFRE‐H30/0.20
configuration
offers
best
efficiency.
Highlights
produced
by
means
lay‐up
wet‐wrapping
hand
3D‐printing
methods.
developed
compression
loads.
versus
displacement
plots
accessible.
Moreover,
histories
found.
In
addition,
COPRAS
method
used
find
optimum
configuration.
Language: Английский
Multi‐criteria decision‐making for optimizing crashworthiness of 3D‐printed PETG‐CF lightweight structures: Influence of printing parameters
Polymer Composites,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 24, 2025
Abstract
This
work
investigates
the
effect
of
printing
parameters
on
crashworthiness
performance
square
tubes
made
with
polyethylene
terephthalate
glycol
reinforced
carbon
fiber
(PETG‐CF).
was
accomplished
by
analyzing
three
parameters,
infill
pattern
structure,
density,
and
layer
height,
each
which
changed
across
four
levels.
The
specimens'
structural
then
assessed
using
quasi‐static
axial
compression
testing.
In
addition
to
carefully
documenting
failure
histories,
data
crash
load,
absorbed
energy,
displacement
responses
were
methodically
recorded
during
Several
critical
measures,
including
initial
peak
load
(),
total
energy
(U),
mean
specific
(SEA),
force
efficiency
(CFE),
used
evaluate
crashworthiness.
A
complex
proportional
assessment
(COPRAS)
method,
employed
determine
optimal
configuration.
results
indicate
that
honeycomb
structure
achieves
highest
values
for
,
U,
SEA,
measurements
5.57
kN,
250.54
J,
4.64
15.27
J/g,
respectively.
Meanwhile,
Schwarz
P
attains
maximum
CFE,
a
value
1.585.
COPRAS
further
indicated
HC‐30‐0.20
configuration
exhibited
best
performance.
Highlights
designed
configurations
created
FDM.
exposed
loads.
crashing
absorption
curves
against
computed.
Besides,
histories
detected.
Furthermore,
method
is
catch
structure.
Language: Английский
Mechanical characterization of 3D printed multiscale carbon nanofiller/continuous fiber reinforced polymer hybrid composites
Jia Li,
No information about this author
Chao Wang,
No information about this author
Yutong Fu
No information about this author
et al.
Polymer Composites,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 19, 2025
Abstract
Mechanical
properties
of
3D
printed
continuous
fiber
reinforced
polymer
composites
(CFRPCs)
are
generally
lower
than
expected
due
to
unavoidable
voids
and
weak
interfacial
adhesion.
However,
previous
research
work
has
rarely
been
reported
on
introducing
carbon
nanofillers
such
as
nanotubes
(CNTs)
graphene
oxide
(GO)
reduce
internal
void
defects
improve
adhesion
CFRPCs.
In
this
work,
an
innovative
means
CNTs
GO
is
proposed
for
enhancing
the
mechanical
hybrid
Polyethylene
terephthalate
glycol
(PETG)
employed
a
matrix
its
excellent
processability
printing
process.
Continuous
basalt
(CBF)
selected
microscale
filler
high
properties,
low
cost
availability
additive
manufacturing.
It
shown
that
into
PETG
leads
notably
reduced
porosity
greatly
improved
between
CBF
PETG.
As
result,
CFRPCs
significantly
enhanced
by
matrix.
Finally,
mechanisms
analyzed
The
multiscale
enhancement
method
characteristics
easy
implementation.
This
approach
contributes
novel
idea
preparing
high‐performance
reducing
simply
nanofillers.
can
expand
material
systems
provide
new
development
industrial
applications.
Highlights
Proposed
performances
optimal
CNT
or
content.
Combination
with
enhances
Language: Английский
How do Printing Parameters Influence the Tensile Performance of 3D-Printed Lightweight Structures: A Comprehensive Analysis and Optimization Approach?
Fibers and Polymers,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 14, 2025
Language: Английский
Investigation and assessment of mechanical properties of co‐extrusion with towpreg continuous carbon fiber reinforced thermoplastic composites manufactured using material extrusion
Polymer Composites,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 2, 2025
Abstract
Additive
manufacturing
(AM)
is
an
advanced
technique
to
fabricate
a
complex
geometrical
structure
using
polymer,
metals,
ceramics,
and
composite
materials.
Fused
filament
fabrication
(FFF)
the
most
widely
used
extrusion‐based
AM
manufacture
polymer
parts.
Continuous
carbon
fiber
(CCF)
lightweight
high‐strength
material
that
offers
exceptional
mechanical
durability
performance
when
incorporated
with
polymers;
it
significantly
enhances
their
performance.
To
print
continuous
fibers
extrusion
technique,
various
methods
have
been
adapted
according
technology.
In
this
study,
self‐developed
co‐extrusion
towpreg
method
was
employed
composites
in
which
both
materials
matrix
CCF
reinforcement
were
inserted
separately
extruded
together
through
single
nozzle.
Two
important
printing
process
parameters
(layer
height
line
width)
considered
different
ranges
investigate
influence
on
properties
(tensile,
flexural,
shear
compressive),
air
void
volume,
volume
fraction.
The
results
obtained
demonstrate
significant
impact
are
mostly
influenced
by
layer
of
samples.
group
specimens
0.4
mm
width
1.0
showed
highest
tensile,
shear,
compressive
strength
372.68,
247.59,
42.83,
184.19
MPa,
respectively,
minimum
13.84%.
Furthermore,
research
outcomes
highlight
can
be
optimized
adjusting
parameters.
Highlights
Co‐extrusion
CCFRTC.
Layer
investigated
for
properties.
theoretical
model
predict
modulus
validate
model's
accuracy.
demonstrated
impact.
This
investigation
led
improving
CCFRTCs
Language: Английский
Effect of multi-cell approach on crashworthiness performance of 3D-printed thin-walled structures under lateral compression loading for unmanned aerial vehicle applications
Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications,
Journal Year:
2025,
Volume and Issue:
unknown
Published: June 2, 2025
Recent
technological
advancements
in
unmanned
aerial
vehicles
have
led
to
their
use
various
military
and
civilian
applications.
However,
weather
conditions,
operator
faults,
electronic
or
mechanical
problems
can
result
vehicle
accidents.
In
the
event
of
an
accident,
energy-absorbing
structures
be
placed
specific
regions
protect
sensitive
costly
cameras,
sensors,
cargo
from
damage,
while
also
preserving
vehicle's
structural
integrity.
this
study,
thin-walled
energy
absorbers
with
circular,
square,
hexagonal,
reentrant
geometries
were
proposed,
experimental
investigation
focused
on
effect
increasing
number
cells
crashworthiness
performance
deformation
mechanisms.
Lateral
compressive
load
was
applied
produced
by
fused
deposition
modeling
technology
using
advanced
polylactic
acid
filament.
Experimental
results
showed
that
triple-cell
structure
demonstrated
promising
for
applications,
as
it
exhibited
highest
mean
crushing
force,
absorption,
absorption
values.
Thanks
unique
geometry
structure,
a
gradual
collapse
mode
observed,
result,
high
performance.
Language: Английский