REVIEWS ON ADVANCED MATERIALS SCIENCE,
Journal Year:
2024,
Volume and Issue:
63(1)
Published: Jan. 1, 2024
Abstract
The
structure
tensor
(ST),
also
named
a
second-moment
matrix,
is
popular
tool
in
image
processing.
Usually,
its
purpose
to
evaluate
orientation
and
conduct
local
structural
analysis.
We
present
an
efficient
algorithm
for
computing
eigenvalues
linking
eigenvectors
of
the
ST
derived
from
material
structure.
performance
efficiency
our
approach
are
demonstrated
through
several
numerical
simulations.
proposed
evaluated
qualitatively
quantitatively
using
different
two-dimensional/three-dimensional
wood
types.
This
article
reviews
properties
first-
second-order
STs,
their
properties,
application
illustrate
usefulness
analyzing
data.
Our
results
demonstrate
that
suggested
achieves
high-quality
trajectory
high-resolution
micro-computed
tomography
(
μ
{\rm{\mu
}}
CT)-imaging.
These
orientations
lead
establishing
description
fiber
states
thermo-mechanical
models
fiber-reinforced
composite
materials.
conclude
with
overview
open
research
problem
directions.
International Journal of Engineering Science,
Journal Year:
2024,
Volume and Issue:
198, P. 104042 - 104042
Published: Feb. 20, 2024
Nonlocal
continuum
mechanics
presents
still
open
questions
about
applicability
of
integral
constitutive
theories
to
nanostructures
current
interest
in
Engineering
Science.
Nevertheless,
nonlocal
elasticity
is
widely
exploited
model
size
effects
small-scale
structures
since
it
represents
an
effective
tool
avoid
computationally
expensive
procedures.
The
known
strain-driven
approach
proposed
by
Eringen
has
shown
intrinsic
incompatibility
between
and
equilibrium
requirements
when
applied
structures.
Such
issue
been
acknowledged
the
scientific
community
merely
for
bounded
continua.
For
structural
problems
defined
unbounded
domains,
obstruction
caused
formulation
a
issue.
present
contribution
definitely
proves
inapplicability
spatial
convolution
proposes
consistent
both
presented
methodology
based
on
stress-driven
convolutions,
representing
key
paradigm
formulate
well-posed
theory
effectively
scale
nanobeams
applicative
Nano-Mechanics.
International Journal of Engineering Science,
Journal Year:
2024,
Volume and Issue:
203, P. 104123 - 104123
Published: July 27, 2024
Although
auxetic
metamaterials
exhibit
unique
and
unusual
mechanical
properties,
such
as
a
negative
Poisson's
ratio,
their
mechanics
remains
poorly
understood.
In
this
study,
we
model
graded
beam
fabricated
from
graphene
origami-enabled
investigate
its
dynamics
the
perspective
of
different
shear
deformation
theories.
The
metamaterial
is
composed
multiple
layers
metamaterials,
where
content
origami
varies
through
layered
thickness;
both
property
other
properties
are
varied
in
manner,
which
effectively
be
approximated
via
micromechanical
models.
Euler-Bernoulli,
third-order,
higher-order
deformable
refined
theories
adopted
to
continuous
system.
Following
this,
governing
motion
equations
derived
using
Hamiltonian
principle
then
numerically
solved
weighted
residual
method.
obtained
results
provide
comprehensive
understanding
how
distribution
pattern,
folding
degree,
utilisation
influence
dynamic
behaviour
beam.
International Journal of Engineering Science,
Journal Year:
2024,
Volume and Issue:
198, P. 104056 - 104056
Published: March 12, 2024
This
study
presents
an
original
and
novel
investigation
into
the
mechanics
of
piezo-flexo-magneto-elastic
nanocomposite
doubly-curved
shells
(PFMDCSs)
ability
to
detect
lower
higher
levels
electro-magnetic
fields.
In
this
context,
by
utilizing
first-order
shear
deformation
shell
model,
stresses
strains
are
acquired.
By
imposing
Hamilton's
principle
von
Kármán
approach,
governing
equations
have
been
obtained.
The
intelligent
model
consists
size-dependent
influences,
viz.,
strain
gradients.
will
take
place
via
Mindlin's
gradient
elasticity
theory
subsequent
re-establishing
mathematical
framework
incorporating
concept.
results
in
a
flexoelectric/flexomagnetic
effect.
converse
effect
magnetic
field
on
basis
close
circuit
has
assumed.
developed
bending
transferred
algebraic
ones
substituting
analytical
technique
based
homogeneous
immovable
simple
support
for
four
edges.
problem
solved
according
Newton-Raphson
iteration
scheme,
transverse
deflections
computed.
For
researching
rightness
precision
models
together
with
solution
process,
comparison
is
prepared
finite
element
method
(FEM)
simplified
shells,
good
correlation
observed.
At
last,
examining
several
factors
problem,
conditions
under
which
effects
can
be
noticeable
dominant
sought.
could
serve
as
benchmark
reference
piezoceramic-DCSs,
presented
original.
most
interesting
outcome
research
that
response
structures
entirely
geometry-dependent.
