MATEC Web of Conferences,
Год журнала:
2024,
Номер
398, С. 01034 - 01034
Опубликована: Янв. 1, 2024
Numerous
studies
have
delved
into
anticipating
the
loadcarrying
capacity
(LC)
of
fiber-reinforced
polymer
(FRP)-confined
concrete-filled
steel
tubes
(CFST)
compression
members
(SFC)
using
limited
and
noisy
data.
However,
none
undertaken
a
comparative
assessment
accuracy
among
various
modeling
techniques
based
on
an
extensive
refined
database.
This
study
aims
to
introduce
analytical
model
for
forecasting
LC
SFC
members.
The
is
developed
utilizing
database
comprising
712
samples,
considering
mechanism
confinement
both
FRP
wraps.
By
incorporating
lateral
columns,
yields
precise
predictions.
As
per
experimental
database,
demonstrates
statistics
such
as
MAE
=
427,
MAPE
283,
R2
0.815,
RMSE
275,
a20-index
0.73,
indicating
its
effectiveness
in
providing
accurate
Materials,
Год журнала:
2024,
Номер
17(15), С. 3847 - 3847
Опубликована: Авг. 3, 2024
In
this
study,
the
crashworthiness
behavior
and
energy
absorption
capacity
of
composite
tubes
under
lateral
indentation
by
steel
rods
aligned
parallel
to
specimen
axis
are
investigated
using
experimental
methods.
Key
parameters
such
as
tube
diameter,
length,
wall
thickness,
indenter
diameter
systematically
examined
compared.
Additionally,
influence
polyurethane
foam
fillers
on
damage
modes
is
rigorously
analyzed.
Contrary
conventional
findings,
smaller
specimens
filled
with
demonstrate
superior
compared
their
larger
counterparts,
primarily
due
enhanced
compression
volume.
Experimental
results
reveal
a
complex
interplay
mechanisms
in
specimens,
including
matrix
cracking,
fiber
breakage,
crushing,
densification,
fracture,
debonding
layers,
all
contributing
absorption.
Increased
alongside
decreased
correlated
higher
contact
forces
improved
Smoother
shell
fractures
promoted,
overall
capabilities
presence
fillers.
This
investigation
provides
valuable
insights
into
structural
response
tubes,
which
essential
for
optimizing
design
across
various
engineering
applications.
Multidiscipline Modeling in Materials and Structures,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 7, 2024
Purpose
The
aim
of
the
current
study
is
to
recommend
and
compare
estimates
finite
element
model
(FEM),
analytical
model,
artificial
neural
networks
(ANN)
for
capturing
LCC
FCSC
members.
A
database
comprising
325
columns
was
constructed
from
previous
studies
propose
FEM
ANN
models
while
proposed
based
on
a
712
samples
encasing
mechanics
steel
tube
FRP
wraps.
concrete
damage
plastic
used
along
with
bilinear
linear
elastic
wraps,
respectively.
Analytical
effectively
considered
lateral
mechanism
accurate
predictions.
Design/methodology/approach
aimed
prediction
accuracy
analytical,
network
load-carrying
capacity
(LCC)
fiber
reinforced
polymer
(FRP)-encased
concrete-filled
(CFST)
compression
members
(FCSC).
developed
models,
samples,
utilizing
tube,
models.
Statistical
evaluated
using
MAE,
MAPE,
R
²,
RMSE,
20-index
across
all
Findings
Based
experimental
database,
presented
accuracies
in
form
statistical
parameters
MAE
=
223.76,
MAPE
285.32,
2
0.94,
RMSE
210.43
a20-index
0.83.
showed
statistics
427.229,
283.649,
0.8149,
275.428
0.73
portrayed
predictions
195,
229.67,
0.981,
174
0.89
columns.
Originality/value
Although
various
investigations
have
already
been
performed
(FCSC)
small
noisy
data,
none
them
compared
different
modeling
techniques
refined
large
database.
Materials,
Год журнала:
2024,
Номер
17(24), С. 6186 - 6186
Опубликована: Дек. 18, 2024
The
lifecycle
of
wind
turbine
blades
is
around
20-25
years.
This
makes
studies
on
the
reuse
dismantled
an
urgent
need
for
our
generation;
however,
their
recycling
very
difficult
due
to
specific
makeup
composite
material.
In
this
study,
authors
determined
a
concept
blade
sections
filled
with
concrete
geotechnical
structures,
retaining
walls,
piles,
or
parts
foundations.
Working
out
detailed
structural
solutions
above
problem
should
be
preceded
by
identification
material
parameters.
particular,
getting
know
interface
stress-strain
characteristics
crucial.
Therefore,
research
focuses
cooperation
between
recycled
FRP
composites
and
in
load-carrying,
including
experiments
numerical
analyses.
Regarding
two
types
destructive
stress,
which
may
occur
at
under
both
compression
bending,
tests
were
executed:
'push-out
test',
modelling
interface's
answer
shear
'pull-off
demonstrating
reaction
normal
stress.
Additionally,
strength
parameters
materials
used
tested.
model
push-out
process
was
calibrated
basis
tests,
way
bond
coefficient
friction
laminate
assessed.
MATEC Web of Conferences,
Год журнала:
2024,
Номер
398, С. 01034 - 01034
Опубликована: Янв. 1, 2024
Numerous
studies
have
delved
into
anticipating
the
loadcarrying
capacity
(LC)
of
fiber-reinforced
polymer
(FRP)-confined
concrete-filled
steel
tubes
(CFST)
compression
members
(SFC)
using
limited
and
noisy
data.
However,
none
undertaken
a
comparative
assessment
accuracy
among
various
modeling
techniques
based
on
an
extensive
refined
database.
This
study
aims
to
introduce
analytical
model
for
forecasting
LC
SFC
members.
The
is
developed
utilizing
database
comprising
712
samples,
considering
mechanism
confinement
both
FRP
wraps.
By
incorporating
lateral
columns,
yields
precise
predictions.
As
per
experimental
database,
demonstrates
statistics
such
as
MAE
=
427,
MAPE
283,
R2
0.815,
RMSE
275,
a20-index
0.73,
indicating
its
effectiveness
in
providing
accurate
