Mechanics of Advanced Materials and Structures,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 15
Published: June 18, 2024
Two-dimensional
(2D)
decagonal
quasicrystal
(QC)
plates
are
analyzed
for
their
postbuckling
behaviors
when
subjected
to
biaxial
compressive
loads
in
this
research.
The
analysis
using
a
combination
of
the
first-order
shear
deformation
theory
(FSDT)
along
with
von
Kármán's
nonlinear
equations
motion,
while
also
accounting
initial
geometric
imperfections.
governing
QC
plate
obtained
through
application
Hamiltonian
variational
principle,
and
equilibrium
path
four-sided
simply
support
is
calculated
two-step
perturbation
technique.
quasiperiodic
structure
phonon-phason
coupling
2D
QCs
play
crucial
role
determining
mechanical
behavior.
numerical
explores
effects
shape,
constants,
imperfections,
forces
on
characteristics
plates.
Numerical
simulations
validate
theoretical
model,
demonstrating
its
accuracy.
FSDT,
Kármán
theory,
method
plates,
considering
complex
interactions
involving
phason
field
unique
quasicrystals,
provides
new
insights
into
intricate
responses
under
conditions.
Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 23, 2025
Since
nanocomposites
have
recently
been
used
in
a
wide
range
of
industries,
scientists
are
becoming
increasingly
interested
simulating
these
kinds
materials.
Engineers
outcomes
that
match
simulations
nanocomposites.
Examining
the
impact
nanoparticle
aggregation
computations
is
one
step
accurately
modeling
reinforced
nanocomposite.
With
regard
to
size-dependent
continuum
modeling,
this
work
aims
evaluate
dynamic
behavior
small-scaled
composites
with
carbon
nanotubes
(CNTs)
light
CNT
aggregations.
In
simulation
nanotube-reinforced
micro-
or
nanocomposite,
taking
into
account
more
length
scale
parameters—which
typically
thought
constant
value—is
crucial.
This
innovative
it
examines
how
affects
nanocomposite
structure
while
considering
variable
parameter.
We
address
and
solve
an
example
using
modified
couple
stress
theory
(MCST).
The
effectiveness
employing
parameter
(LSP)
MCST
confirmed
by
conducting
comparison
between
proposed
strategy
experimental
molecular
(MD)
results.
A
curved
microbeam
examined
for
problem,
alterations
agglomeration
parameters
investigated
detail.
Journal of Materials Research and Technology,
Journal Year:
2023,
Volume and Issue:
27, P. 1017 - 1045
Published: Oct. 5, 2023
Carbon
fiber
reinforced
polymer
composites
(CFRPs)
have
been
widely
used
in
civil
engineering
due
to
light
weight,
high
strength,
corrosion
resistance,
etc.
CFRPs
can
maintain
their
original
design
function
and
service
performances
harsh
environments
a
long
period
excellent
hydrothermal
resistance.
In
the
present
paper,
ageing
of
were
comprehensively
summarized
terms
water
uptake
process,
thermal/mechanical
property
degradation
prediction
models
long-term
retention
properties.
The
described
by
two
kinds
(Fickian
non-Fickian).
mechanical
exposed
was
mainly
attributed
fiber-matrix
debonding.
evolution
tensile
interlaminar
shear
flexural
strength
glass
transition
temperature
at
different
stages
characterize
behavior.
accuracy,
applicability,
reliability,
precision,
practicality,
environmental
factors
mechanisms
three
typical
model
methods
(empirical
methods,
mechanistic
machine
learning
methods)
life
compared.
ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik,
Journal Year:
2024,
Volume and Issue:
104(11)
Published: Sept. 22, 2024
Abstract
The
transference
of
the
surface
seismic
wave
at
loosely
bonded
common
interface
a
visco‐piezo
composite
structure
is
examined
in
current
work.
With
flexoelectric
effect
taken
into
account,
composed
viscoelastic
layer
embedded
on
piezoelectric
substrate.
shear
stiffness
upper
thought
to
be
described
by
Kelvin–Voigt
model.
An
analytical
separable
variable
method
used
derive
complex
dispersion
relation
for
both
electrically
open
and
short
circuit
scenarios.
A
numerical
example
presented
demonstrate
significant
influence
several
influencing
parameters
wave's
phase
velocities
attenuation
coefficients.
Additionally,
graphic
comparison
three
rheological
models
–
Maxwell,
Newton
covered.
Results
indicate
that
curve
pertaining
Maxwell
model
lowest
than
Some
major
outcomes
are
highlighted
here
as:
prominent
bonding
parameter
well‐proportional
velocity
inversely
proportional
coefficient,
flexoelectricity
has
an
intensive
impact
coefficient
curves.
This
theoretical
study
leads
understanding
piezo‐flexo
coupling
its
potential
application
design
sensors,
actuators,
energy
harvesters
nano‐electronics.
Ain Shams Engineering Journal,
Journal Year:
2024,
Volume and Issue:
15(5), P. 102640 - 102640
Published: Jan. 25, 2024
In
the
present
paper,
combination
of
mixed
interpolation
tensorial
components
technique
triangular
elements
(MITC3)
based
upon
first-order
shear
deformation
theory
(FSDT)
is
developed
to
research
free
and
forced
vibration
unsymmetrical
functionally
graded
porous
(UFGP)
folded
sandwich
plates.
The
MITC3
element
still
uses
mesh
avoids
shear-locking
phenomena
that
occur
when
using
classical
elements.
Based
on
basic
formula
for
analyzing
plates,
twisted
angle
(φz)
added
node
displacement
vector
solve
Material
properties
plates
are
unsymmetric
with
an
FGP
core
layer,
a
metal
bottom
ceramic
top
layer.
motion
equations
UFGP
derived
from
Hamilton's
principle.
Some
examples
conducted
verify
accuracy
reliability
method.
Then,
new
numerical
results
vibrations
provided.
Waves in Random and Complex Media,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 39
Published: June 27, 2024
Shallow
spherical
caps
are
commonly
encountered
in
the
design
of
spacecraft
components,
such
as
fuel
tanks
or
structural
elements.
Understanding
dynamic
behavior
can
contribute
to
identification
potential
failure
modes.
The
modulus
elasticity
augmented
composite
upper
layer
is
obtained
using
model
Halpin–Tsai,
and
this
with
graphene
platelets
(GPLs).
Also,
GPLs'
volume
fraction
from
top
considered
for
different
cases
GPLs.
bottom
assumed
functionally
graded
(FG)
two
kinds,
type
A:
FG
layers
homogeneous
core,
B:
core
layers.
To
approximate
displacement
field,
new
hyperbolic
tangent
shear
deformation
theory
(HTSDT)
has
been
used
which
no
need
modification
coefficients.
By
adopting
Hamilton's
principle,
equations
motion
solved
by
discrete
differential
quadrature
method
(DQM)
well
Newmark's
time
marching
scheme
implementing
famous
Newton–Raphson
iterative
technique.
When
index
infinite,
it
observed
that
point
maximum
decreases
12.5%,
critical
load
increases
about
23%
compared
case
where
zero.
