From Nature to Engineering: Mortar Volume and Interfacial Mechanics in Bioinspired Ceramics
Advanced Engineering Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 13, 2025
Natural
armors
such
as
nacre
inspire
the
development
of
bioinspired
ceramics
due
to
their
exceptional
toughness
and
damage
tolerance.
This
study
examines
influence
mortar
volume
fraction
on
interfacial
mechanics
ceramic
composites
using
single
lap
joint
specimens
with
varying
soft‐layer
(mortar)
volumes:
low
(LMV,
3%),
medium
(MMV,
6%),
high
(HMV,
9%).
These
fractions
reflect
natural
nacre's
content
are
precisely
controlled
during
specimen
fabrication.
Experimental
results
demonstrate
adhesive
failure
dominant
mode,
increased
enhancing
maximum
elongation
without
altering
ultimate
shear
strength.
Finite
element
analysis
ABAQUS
a
cohesive
zone
model
reveal
volume's
significant
effect
sliding
behavior
strain
energy
release
rate
(SERR).
Specifically,
compared
MMV,
LMV
exhibits
5%
increase
in
stiffness
26%
reduction
SERR,
while
HMV
shows
4%
decrease
29%
SERR.
The
delays
crack
initiation
extends
plastic
deformation
phase,
thereby
dissipation
capabilities.
findings
inform
tougher,
damage‐resistant
for
engineering
by
optimizing
ceramics.
Language: Английский
The effect of automated fiber placement process parameters on interlaminar shear strength of uncured prepreg bonded samples
Journal of Composite Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 11, 2025
The
effects
of
automated
fiber
placement
(AFP)
parameters
on
the
inter-laminar
bonding
between
uncured
thermoset
prepreg
tapes
were
investigated
using
a
systematic
series
experiments
and
FE
analysis.
goal
was
to
optimize
during
AFP
lay-up
process
provide
model
for
interlayer
this
process.
shear
strength
interfacial
plays
pivotal
role
in
formation
planar
non-planar
deformations
quality
has
significant
effect
manufactured
parts.
Besides,
is
interconnected
with
various
including
compaction
roller,
feed
rate,
temperature,
dwell
time.
Hence,
experimental
studies
are
conducted
investigate
how
changes
affect
single
lap
joint
(SLJ)
specimens
produced
under
conditions.
To
fabricate
single-lap
samples
different
conditions,
an
in-house
setup
developed
simulate
allowing
us
control
force,
time
results
joints
indicate
that
bonded
tows
significantly
influenced
by
interaction
among
rather
than
their
individual,
isolated
effects.
Moreover,
responses
SLJs
simulated
method.
Through
comparison
numerical
results,
it
will
be
clearly
shown
framework
can
act
as
reliable
approach
modeling
layer
tapes.
Language: Английский
Flexible Multilayered Ceramics: Engineering Strength and Resilience
Journal of Science Advanced Materials and Devices,
Journal Year:
2025,
Volume and Issue:
unknown, P. 100874 - 100874
Published: March 1, 2025
Language: Английский
Enhancing Ceramic Structural and Interfacial Properties via Micro‐Patterning and Macro‐Architectural Integration
Advanced Materials Technologies,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 27, 2025
Abstract
This
study
investigates
a
dual‐scale
strategy
combining
micro‐patterning
with
macro‐architectural
features
to
enhance
the
mechanical
and
interfacial
properties
of
bioinspired
ceramic
composites.
High‐tolerance
alumina
tiles
are
precisely
laser‐micromachined
unidirectional
(0°,
90°,
45°)
bidirectional
((0°,
90°)
±45°)
patterns,
then
laminated
thermoplastic
Surlyn
layers
through
vacuum
bagging
heat
treatment
achieve
optimal
bonding.
Double
lap
joint
(DLJ)
three‐point
bending
(3PB)
tests
performed
evaluate
bonding,
flexural
behavior,
energy
absorption.
DLJ
results
indicated
significant
enhancement
in
±45°
pattern
achieving
107%
increase
damage
dissipation
compared
plain
specimens,
attributed
interlocking
crack
deflection.
In
3PB
tests,
patterns
showed
minimal
impact
on
properties,
whereas
reduced
stiffness
strength.
However,
integrating
micro‐patterns
hexagonal
macro‐architectures
notably
improved
absorption
by
60%
beams.
synergistic
approach
represents
substantial
advancement
over
conventional
ceramics,
enabling
superior
post‐failure
performance
absorption,
potential
for
resilient
materials
aerospace
other
high‐performance
applications.
Language: Английский