Waves in Random and Complex Media,
Год журнала:
2021,
Номер
34(6), С. 5077 - 5109
Опубликована: Дек. 22, 2021
Stress
wave
propagation
and
free
vibration
response
of
functionally
graded
graphene
platelet
(FG-GPL)-reinforced
porous
joined
truncated
conical–cylindrical-conical
shell
are
investigated
in
this
paper.
The
is
constructed
a
metallic
matrix
reinforced
by
three
types
distribution
GPLs
open-cell
interior
pores.
modified
Halpin–Tsai
estimation
the
generalized
rule
mixture
employed
to
calculate
effective
mechanical
properties
structure.
Three
different
distributions
for
porosity
assumed
along
with
thickness:
two
kinds
symmetric
FG
uniform
porosity.
Rayleigh-Ritz
energy
method,
accompanied
Finite
element
has
been
used
solve
2D-axisymmetric
elasticity
equations.
Furthermore,
Newmark
direct
integration
method
applied
obtain
time
responses
stress
shells
subjected
an
internal
impulse
loading.
A
comparative
detailed
investigation
also
conducted
indicate
effects
boundary
conditions,
geometries,
weight
fraction
GPLs,
coefficient,
dispersion
pattern
on
natural
frequencies,
mode
shapes
histories
displacement
stresses
shell.
