Applied Physics Letters,
Journal Year:
2025,
Volume and Issue:
126(4)
Published: Jan. 27, 2025
The
emergence
of
twisted
metamaterials
opens
up
an
avenue
for
research
in
metamaterials.
However,
the
current
emphasis
primarily
lies
mechanics,
rendering
it
intriguing
to
explore
application
compression-torsion
coupling
effect
optics.
This
present
study
introduces
a
thin-walled
circular
tube
(TWCT)
structure,
characterized
by
pronounced
twisting
angle
59.5°,
achieved
only
through
single-layer
TWCT
configuration.
We
demonstrate
significant
phenomenon,
surpassing
findings
previous
endeavors.
TWCT's
deformation
mechanism
is
harnessed
optical
imaging
integration
experimental,
theoretical,
and
finite
element
approaches.
information
stored
can
be
gradually
projected
when
elastic
strain
stimulates
TWCT.
These
presented
herein
straightforward
valid
approach
employ
as
reliable
mechanical
switch
imaging,
thereby
showcasing
its
potential
fields
cryptographic
techniques,
storage,
transmission
via
imaging.
Macromolecular Materials and Engineering,
Journal Year:
2024,
Volume and Issue:
309(6)
Published: March 13, 2024
Abstract
In
this
study,
Acrylonitrile
butadiene
styrene
(ABS)
with
three
different
ratios
of
30%,
50%,
and
70%
is
used
to
enhance
the
shape
memory
mechanical
properties
Polyethylene
terephthalate
glycol
(PETG).
Additionally,
morphology,
printability,
dynamic
thermomechanical
analysis
are
also
examined.
The
thermal
test
results
show
that
PETG‐ABS
compounds
have
two
transition
temperatures
in
range
80
110
°C,
which
related
components.
By
changing
weight
percentage
PETG
from
30
70%,
morphologies
matrix‐droplet,
sea‐island,
combination
co‐continuous
matrix‐droplet
observed.
an
increase
strength
ABS,
can
be
justified
due
higher
ABS
compared
PETG.
highest
tensile
32.48
MPa
15.16%
elongation
obtained
for
PETG‐ABS(30‐70)
PETG‐ABS(70‐30),
respectively.
Due
better
performance
PETG,
PETG‐ABS(50‐50)
PETG‐ABS(70‐30)
complete
recovery,
recovery
rate
increased.
This
diversity
properties,
effect
one
goals
research
well
fulfilled.
Polymer Composites,
Journal Year:
2024,
Volume and Issue:
45(7), P. 6644 - 6661
Published: Feb. 17, 2024
Abstract
This
study
explores
the
application
of
abrasive
waterjet
drilling
(AWJD)
for
varied
patterns
GF/Al
mesh
hybrid
composites
(neat
glass
NG,
AG:
Al
in
exterior
surface,
and
GA:
center).
Key
parameters
such
as
jet
pressure
(
P
),
standoff
distance
S
traverse
speed
V
)
are
systematically
varied,
influencing
material
removal
rate
(MRR),
hole
taper
ratio
(),
roundness
error
().
Employing
a
Taguchi
approach
with
an
L9
design.
It
was
indicated
that
optimal
conditions
maximum
MRR
:
150
MPa,
2
mm,
900
mm/min).
main
influential
on
.
Gray
relational
analysis
(GRA)
is
employed
simultaneous
optimization,
enhancing
performance.
The
300
mm/min
determined.
Validation
trials
confirm
effectiveness
determined
parameters.
A
robust
multiple
regression
equation
formulated,
providing
predictive
model
aligns
closely
experimental
observations.
Highlights
were
drilled
via
nontraditional
process.
attributes
geometry
impacts
studied.
Operation
optimized
to
improve
MRR,
,
confirmation
test
performed
validated.
AIP Advances,
Journal Year:
2024,
Volume and Issue:
14(5)
Published: May 1, 2024
This
study
investigates
the
enhancement
of
mechanical
properties
metal/polymer
composites
produced
through
fused
deposition
modeling
and
prediction
ultimate
tensile
strength
(UTS)
by
machine
learning
using
a
Classification
Regression
Tree
(CART).
The
composites,
comprising
80%
acrylonitrile
butadiene
styrene
matrix
10%
each
aluminum
(Al)
copper
(Cu)
fillers,
were
subjected
to
comprehensive
exploration
printing
parameters,
including
temperature,
infill
pattern,
density
Taguchi
method.
CART
unveiled
hierarchical
tree
structure
with
four
terminal
nodes,
representing
distinct
subgroups
materials
characterized
similar
UTS
properties.
predictors’
importance
was
assessed,
highlighting
their
role
in
determining
material
strength.
model
exhibited
high
predictive
power
an
R-squared
value
0.9154
on
training
data
0.8922
test
data,
demonstrating
its
efficacy
capturing
variability.
optimal
combination
parameters
for
maximizing
zigzag
temperature
245
°C,
10%,
which
is
associated
highest
680
N.
model’s
reliability
confirmed
paired
t-test
confidence
interval
two
variances,
revealing
no
significant
difference
between
observed
predicted
values.
research
contributes
advancing
additive
manufacturing
processes
leveraging
analysis
optimize
predict
identified
conditions
subgroup
characteristics
pave
way
developing
robust
predictable
offering
valuable
insights
design
era
advanced
technologies.
Mechanics of Advanced Materials and Structures,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 19
Published: June 19, 2024
Graphene
origami
in
a
copper
matrix
is
used
as
composition
of
core
sandwich
panel
between
two
piezoelectric/piezomagnetic
layers.
More
accurate
modeling
the
composite
structure
performed
using
higher-order
model
including
thickness
stretching
term.
Principle
virtual
work
order
to
derive
governing
equations
terms
resultant
components
force
and
moment
well
electromagnetic
loads.
The
are
derived
framework
with
accounting
electric
magnetic
potentials
effective
material
properties
graphene
Halpin-Tsai
rule
mixture
framework.
deformation/strain/stress
analytically
obtained
thermal,
mechanical,
electrical,
loads
folding
degree
content
origami.
Verification
for
justification
numerical
results.
A
foldability
dependent
parametric
analysis
presented
show
controllability
stress,
strain
deformations
along
direction.
