International Journal of Applied Mechanics,
Journal Year:
2022,
Volume and Issue:
14(04)
Published: April 28, 2022
Owing
to
their
superior
mechanical
properties,
functionally
graded
materials
(FGMs)
are
currently
applicable
for
many
tribological
systems,
which
increased
the
need
a
rapid
prediction
tool
of
hardness
and
wear
behavior
these
materials.
To
this
end,
paper
aims
present
empirical
equations
predict
residual
indentation
deformation
PSZ/NiCrAlY
composite
FGM
that
could
give
indication
on
material
rates
at
different
loads.
The
were
derived
two
common
gradient
laws,
power
(P-FGM)
sigmoid
(S-FGM),
based
numerical
results
obtained
validated
with
experimental
in
study.
by
simulating
experiments
using
commercial
finite
element
software
considering
all
elastic
plastic
properties.
influence
index,
law
displacement
force-indentation
response,
contact
pressure
distribution,
stains,
surface
profile
evolutions,
deformations
studied.
showed
force
larger
P-FGM
than
S-FGM
indices.
is
indices
due
higher
PSZ
ceramic
phase
area
S-FGM.
was
normalized
respect
its
value
pure
matrix
highlighted
independence
ratio
load.
Finally,
index
both
functions.
Zeitschrift für Naturforschung A,
Journal Year:
2023,
Volume and Issue:
78(8), P. 681 - 701
Published: June 11, 2023
Abstract
Due
to
nonlocal
and
strain
gradient
effects
with
rigid
deformable
boundary
conditions,
the
thermal
vibration
behavior
of
perforated
nanobeams
resting
on
a
Winkler
elastic
foundation
(WEF)
is
examined
in
this
paper.
The
Stokes
transformation
Fourier
series
have
been
used
achieve
goal
determine
under
various
including
non-deformable
ones.
nanobeams’
conditions
are
considered
deformable,
theory
accounts
for
size
dependency.
problem
modeled
as
an
eigenvalue
problem.
effect
parameters
such
number
holes,
foundation,
gradient,
boundaries
solution
considered.
parameters,
length
beam,
filling
ratio,
parameter,
small-scale
nanobeam,
then
illustrated
using
set
numerical
examples.
As
result
analysis,
it
was
determined
that
frequency
nanobeam
most
affected
by
changes
dimensionless
WEF
parameter
first
mode
internal
when
all
modes
were
