Polymer Composites,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 26, 2024
Abstract
The
off‐axis
creep
behavior
of
glass‐fiber
reinforced
polymer
(GFRP)
unidirectional
lamina
is
crucial
for
engineering
structural
applications.
A
unified
prediction
model
time‐dependent
and
on‐axis
tensile
strain
in
GFRP
developed.
model,
analogous
form
to
the
one‐parameter
plasticity
accounts
deformation
separately
elastic
plastic
response
stages,
incorporating
a
correction
term
describe
deformation.
accuracy
confirmed
through
tests
on
at
angles
0,
15,
30,
45,
60,
90
degrees.
successfully
predicts
respectively.
effects
stress,
time,
angle
are
investigated.
optimal
test
predicting
using
only
two
angles'
analyzed.
dominant
factors
various
evaluated.
findings
study
include
recommendations
lay‐up
configuration
applications
composites.
Highlights
was
Creep
calculated
stages.
link
between
determined.
were
Composites Science and Technology,
Год журнала:
2022,
Номер
232, С. 109846 - 109846
Опубликована: Ноя. 17, 2022
Tow-Based
Discontinuous
Composites
(TBDCs)
combine
high
manufacturability
with
good
mechanical
properties.This
work
presents
a
novel
3D
approach
for
the
numerical
modelling
of
TBDCs.The
framework
generates
orientation
tensors
by
adding
stochastic
component
to
deterministically
predicted
process
simulation.The
actual
TBDCs
are
thus
idealised
as
Equivalent
Laminates
(ELs),
resulting
from
these
tensors.A
physically
based
failure
criterion
is
presented
prediction
initiation
ELs.The
consequent
stiffness
reduction
captured
ply-discount
method.The
validated
two
materials,
different
moulding
conditions
and
amounts
in-mould
flow.The
proposed
accurately
predicts
characteristic
variability
materials.As
consequence,
strength
was
in
agreement
experimental
results
both
materials
tested.
Polymer Composites,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 26, 2024
Abstract
The
off‐axis
creep
behavior
of
glass‐fiber
reinforced
polymer
(GFRP)
unidirectional
lamina
is
crucial
for
engineering
structural
applications.
A
unified
prediction
model
time‐dependent
and
on‐axis
tensile
strain
in
GFRP
developed.
model,
analogous
form
to
the
one‐parameter
plasticity
accounts
deformation
separately
elastic
plastic
response
stages,
incorporating
a
correction
term
describe
deformation.
accuracy
confirmed
through
tests
on
at
angles
0,
15,
30,
45,
60,
90
degrees.
successfully
predicts
respectively.
effects
stress,
time,
angle
are
investigated.
optimal
test
predicting
using
only
two
angles'
analyzed.
dominant
factors
various
evaluated.
findings
study
include
recommendations
lay‐up
configuration
applications
composites.
Highlights
was
Creep
calculated
stages.
link
between
determined.
were
