Applied Mathematics and Nonlinear Sciences,
Journal Year:
2024,
Volume and Issue:
9(1)
Published: Jan. 1, 2024
Abstract
In
order
to
predict
the
structural,
mechanical
properties
of
carbon
fiber
reinforced
materials
(CFRM)
under
different
aging
conditions
in
terms
tensile
and
flexural
strengths,
this
paper
establishes
a
Representative
Volume
Element
(RVE)
model
imposes
periodic
boundary
realize
prediction
basic
CFRM
materials.
The
relevant
performance
parameters
elasticity,
material
were
obtained
through
one-way
continuous
testing
tests,
after
which
damage
matrix
judiciously
simulated.
results
showed
that
strength
decreased
by
1.51%,
1.72%,
1.22%,
1.02%
four
conditions.
Its
modulus
0.65%,
1.08%,
0.72%
0.47%,
respectively.
80°C
water
environment,
its
bending
(10.56%)
(7.99%)
least
extent,
more
resistant
immersion
aging.
degree
fracture
during
multi-mode
simulation
is
obvious
than
cracking
case,
verifies
main
fine-scale
failure
mechanism
for
behavior
composites
RVE
proposed
essentially
similar
used
structural
engineering,
computational
logical.
Fatigue & Fracture of Engineering Materials & Structures,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 16, 2025
ABSTRACT
Predicting
very
high
cycle
fatigue
(VHCF)
life
in
composites
is
challenging
due
to
the
lengthy
testing
times
required
by
traditional
methods.
Ensuring
compatibility
between
VHCF
and
(HCF)
data
presents
an
additional
challenge.
This
investigation
examines
CF‐PEKK
behavior
under
low
ultrasonic
cyclic
frequencies
using
a
thermographic
approach
fracture
entropy
(FFE)
concept.
Constant‐amplitude
(CAF)
increasing‐amplitude
(IAF)
tests
were
conducted,
with
self‐heating
analyzed
for
different
loading
conditions.
Heat
dissipation
rates
from
IAF
experiments
three
CAF
at
40
Hz
20
kHz
used
calculate
FFE
values.
Results
showed
that
response
of
specimens
helps
achieve
comparable
across
frequencies,
consistent
ranges
identified
HCF
regimes.
consistency
highlights
can
provide
reliable
estimation
composites.
