Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 23, 2024
Laminated
bamboo
composites
(LBC),
made
by
sandwiching
strips,
offer
promising
alternatives
to
traditional
construction
materials,
especially
for
housing.
However,
subjection
the
continuous
static
loading
makes
these
materials
initiate
cracks
inside
their
various
ply.
This
study
uses
classical
laminate
theory
(CLT)
determine
strength
ratio
(SR)
of
LBC
at
different
ply
orientations
applying
Tsai-Wu
and
Tsai-Hill
failure
criteria
using
MATLAB.
The
aims
calculate
SRs
LBCs
CLT,
employing
an
ANN
model
stochastic
finite
element
(FE)
modeling
investigate
five-layered
with
varying
orientations.
Applying
highest
SR
was
determined
be
1.5375
×
10
7
N/m
[0°/0°/0°/0°/0°]
laminate,
as
per
both
theories.
reveals
substantial
variations
depending
on
orientation,
consistently
showing
higher
predictions
compared
theory.
Next,
emphasizes
deterministic
methodologies
account
effects
angle
obtained
LBCs.
Monte
Carlo
simulation
(MCS)
utilized
10,000
randomly
generated
inputs
associated
SRs.
By
incorporating
MCS
introduce
±1%
in
angles
utilizing
normally
distributed
data,
this
research
effectively
captures
uncertainties
orientation.
Finally,
forecast
random
orientations,
artificial
neural
network
(ANN)
surrogate
is
employed.
analysis
confirms
need
quantify
uncertainties.
findings
are
crucial
advancing
application
sustainable
construction,
providing
valuable
insights
into
mechanical
behavior
under
considering
effect
properties.
Polymer Composites,
Journal Year:
2024,
Volume and Issue:
45(7), P. 6077 - 6092
Published: Feb. 1, 2024
Abstract
The
aim
of
this
investigation
was
to
delve
into
the
impact
abrasive
water
jet
machining
(AWJM)
process
variables
on
surface
roughness
(
R
a
)
and
kerf
angle
K
hybrid
fiber‐reinforced
polyester
composites.
Utilizing
both
response
methodology
(RSM)
artificial
neural
network
(ANN)
prediction
models,
study
sought
optimize
input
parameters
for
machining,
specifically
in
context
paddy
straw
PALF‐reinforced
targeted
optimization
included
flow
rate,
traverse
standoff
distance
during
AWJM.
identified
an
optimal
combination
AWJM
that
effectively
meets
practical
requirements
According
RSM,
suggested
values
are
rate
set
at
300
g/min,
speed
110
mm/min,
1
mm.
ANN
exhibited
robust
predictive
capabilities,
achieving
high
2
scores
0.932
0.962
angle,
respectively.
To
enhance
performance
minimize
researchers
conducted
parameters.
Subsequently,
confirmation
experiments
were
executed
validate
model
fine‐tune
application.
Highlights
Investigated
value
Used
RSM
models
parameter
biocomposite.
Optimal
parameters:
AFR
(300
g/min),
TS
(110
mm/min),
SOD
(1
mm).
showed
strong
predictions:
).
Confirmation
validated
applications.
Polymer Composites,
Journal Year:
2024,
Volume and Issue:
45(10), P. 9421 - 9439
Published: April 9, 2024
Abstract
This
study
investigates
the
influence
of
NaOH
treatment
on
tribological
behavior
in
hybrid
fiber‐reinforced
composites,
specifically
employing
Banana
fiber
with
Al
2
O
3
filler
an
epoxy
matrix.
Through
design
experiments
(DOE),
disc
speed,
wear
duration,
and
are
analyzed
for
specific
rate
(SWR)
coefficient
friction
(COF).
To
advance
understanding
characteristics,
leverages
advanced
machine
learning,
using
Python‐powered
artificial
neural
networks
(ANN),
is
integrated
innovative
ANN
hyperparameter
optimization.
Optimized
parameters
(1050
rpm,
60
s,
5%
treatment)
significantly
minimize
SWR
(12.38
×
10
−5
mm
/Nm)
COF
(0.2).
Scanning
electron
microscopy
(SEM)
analysis
reveals
improved
interfacial
adhesion
identifies
micro‐cracks
as
primary
mechanism.
work
contributes
to
a
profound
offering
fine‐tuned
predictive
model
optimizing
advancing
material
science
engineering.
Highlights
Reduced
SWR,
composites
via
DOE:
Explored
impact.
Advanced
learning
techniques
enhanced
prediction.
Innovative:
Optimal
Parameters:
1050
treatment.
Journal of Reinforced Plastics and Composites,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 17, 2025
The
objective
of
this
study
is
to
investigate
the
effects
alumina
filler
content
and
NaOH-treated
Roselle
fibers
on
mechanical,
thermal,
biodegradation,
tribological
properties
while
identifying
optimal
conditions
for
eco-friendly
applications.
Compression
molding
was
employed
fabricate
composites,
results
revealed
significant
improvements
in
performance
with
chemical
treatment
content.
Mechanical
testing
showed
that
10%
composite
exhibited
highest
tensile,
flexural,
impact
strengths
due
enhanced
interfacial
bonding
uniform
dispersion.
Thermal
analysis
demonstrated
improved
stability,
offering
best
thermal
degradation
resistance.
Biodegradation
studies
indicated
slower
weight
loss
alumina-filled
highlighting
their
environmental
durability.
Tribological
evaluations
achieved
lowest
specific
wear
rate
(SWR)
coefficient
friction
(COF),
supported
by
SEM
showing
minimal
debris
surface
damage.
Optimization
using
a
simulated
annealing
algorithm
identified
ideal
(sliding
velocity:
6.6
m/s,
sliding
distance:
500.33
m,
content:
10.62%)
minimized
SWR
(13.28
×
10⁻⁵
mm³/Nm)
COF
(0.278).
These
findings
provide
valuable
insights
into
fiber
composites
sustainable
applications
automotive
packaging
industries.
Journal of Reinforced Plastics and Composites,
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 27, 2024
This
study
delves
into
the
significant
effects
of
sodium
hydroxide
(NaOH)
treatment
on
tribological
properties
hybrid
fiber-reinforced
composites,
specifically
focusing
combination
paddy
straw
(PS)
and
pineapple
leaf
(PALF)
in
a
polyester
matrix.
By
leveraging
Artificial
Neural
Networks
(ANNs)
to
predict
Specific
Wear
Rate
(SWR)
Coefficient
Friction
(COF),
research
employs
grid
search
approach
for
hyperparameter
optimization.
optimization
process
results
an
optimal
ANN
architecture
with
impressive
accuracy,
showcasing
low
mean
absolute
error
high
R-squared
values
0.991
0.986
SWR
COF
predictions,
respectively.
Utilizing
Design
Experiments
(DOE),
systematically
analyzes
intricate
interplay
disc
speed,
wear
duration,
NaOH
percentage,
specific
focus
as
pivotal
metrics.
The
Analysis
Variance
(ANOVA)
underscore
substantial
impact
duration
percentage
characteristics.
Additionally,
quadratic
regression
models
reveal
nuanced
correlations,
highlighting
sensitivity
influence
COF.
outcome
emphasizes
efficacy
these
parameters
achieving
superior
performance
composites.
Beyond
contributing
profound
understanding
characteristics,
this
work
introduces
innovative
dimension
through
optimized
modeling,
ensuring
more
accurate
fine-tuned
predictive
model.
Polymer Composites,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 14, 2025
Abstract
This
study
examines
how
NaOH
treatment
and
alumina
filler
affect
the
mechanical
properties,
water
absorption,
thermal
degradation,
sliding
wear
of
epoxy
composites
reinforced
with
pineapple
leaf
fiber.
greatly
improved
composites'
tensile,
flexural,
impact
strengths
by
strengthening
bond
between
fiber
matrix.
Furthermore,
incorporation
further
elevated
properties.
The
composite
10%
showed
peak
values
41.4
MPa
in
tensile
strength,
63.8
flexural
37.6
kJ/m
2
strength.
Because
hygroscopic
parts
were
removed
from
treated
composites,
they
absorbed
much
less
water.
15%
had
lowest
absorption
at
18%
after
192
h.
Thermal
degradation
analysis
that
stability,
having
highest
char
residue
(15.3%)
700°C.
Sliding
tests
reinforcement
significantly
reduced
specific
rate
(SWR)
coefficient
friction
(COF).
an
SWR
0.2598
×
10
−5
mm
3
/Nm
a
COF
0.103
when
120
cm/s,
45
N
load
over
1500
m
distance.
A
scanning
electron
microscopy
found
untreated
experienced
severe
abrasive
wear,
while
exhibited
mild
adhesive
wear.
shows
treating
PALF
adding
enhance
their
mechanical,
thermal,
tribological
making
them
suitable
for
high‐performance
industrial
applications.
Highlights
Alumina
(41.4
MPa)
strength
(63.8
MPa).
NaOH‐treated
moisture,
enhancing
durability.
stability
improved,
15.3%
700°C
alumina.
Optimized
achieved
(0.2598
/Nm).
Artificial
neural
network
response
surface
methodology
accurately
predicted
optimized
behavior.