Size‐dependent nonlinear transient analysis of rotating porous thick and thin FGM microblade under cooling thermal shock
ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 1, 2024
Abstract
The
present
work
is
an
attempt
to
develop
a
simple,
accurate,
and
widely
applicable
finite
element
formulation
for
the
size‐dependent
nonlinear
transient
analysis
of
rotating
porous
thick
thin
functionally
graded
material
(FGM)
microblade
subjected
load
due
centrifugal
force
cooling
thermal
shock.
First‐order
shear
deformation
theory
in
conjunction
with
von
Karman‐type
nonlinearity
used
development
formulation.
temperature‐dependent
properties
SUS304
stainless
steel
AISI
1020
carbon
are
taken.
upper
layer
made
shock
lower
held
constant
at
room
temperature.
governing
differential
equation
obtained
using
total
Lagrangian
modified
coupled
stress
(MCST).
Modified
Newton–Raphson
Newmark
average
acceleration
method
obtain
response
FGM
pretwisted
blade.
results
from
first
compared
wide
range
parameters.
New
presented
investigate
effect
porosity,
intensity
shock,
scale
ratio,
rotational
velocity,
volume
fraction
index
on
SUS304/AISI
blade
under
Language: Английский
Size‐dependent buckling analysis of functionally graded nanoplate coupled with piezoelectric layers resting on orthotropic foundation based on surface piezo‐elasticity theory
ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 25, 2024
Abstract
In
this
study,
a
refined
plate
theory
by
considering
stretching
effects
extended
to
investigation
of
quasi‐3D
size‐dependent
buckling
analysis
functionally
graded
simply
supported
nanoplate
integrated
with
piezoelectric
face‐sheets
resting
on
orthotropic
foundation
taking
into
account
the
surface
effects.
The
power
law
is
used
calculate
material
properties
in
core
which
non‐homogeneous
are
continuously
changing
along
thickness.
Due
consideration
materials
and
due
asymmetry
distribution
core,
middle
plane
neutral
do
not
coincide.
Hence,
consider
reference
plane,
concept
considered.
kinematics
formulated
nonlocal
higher
order
shear
deformation
based
strain
gradient
theory.
Additionally,
effect
modeled
piezo‐elasticity
To
check
accuracy
efficiency
current
model,
comprehensive
validation
comparative
study
has
been
conducted
results
obtained
found
previous
literature.
Finally,
investigate
various
parameters,
including
different
foundations,
residual
stress,
effects,
effect,
surface,
aspect
ratio,
thickness
nanlocal
parameter,
length
scale
index,
initial
voltage,
examined
critical
load
details.
It
expected
that
should
be
utilized
designing
micro/nano‐electro‐mechanical
systems
components
smart
nanostructures.
Language: Английский