Materials,
Год журнала:
2024,
Номер
18(1), С. 29 - 29
Опубликована: Дек. 25, 2024
The
stress
distribution
within
the
struts
of
lattice
metamaterials
is
non-uniform
under
compressive
loads,
with
concentrations
typically
occurring
at
node
regions.
Inspired
by
bamboo,
this
study
proposes
a
type
body-centered
cubic
(BCC)
metamaterial
tapered
prism
(BCCT).
behavior,
deformation
modes,
mechanical
properties,
and
failure
mechanisms
BCCT
are
systematically
analyzed
using
finite
element
methods
validated
through
compression
tests.
Parametric
analysis
conducted
to
investigate
effects
key
design
parameters,
including
volume
fraction,
shape
parameter,
material
properties.
results
reveal
that
effectively
eliminate
concentration
nodes
redistributing
toward
center
struts.
This
redistribution
changes
mode
from
shear
band
layer
collapse,
while
maintain
bending-dominated
mechanism
compression.
properties
significantly
influenced
factor.
Furthermore,
different
fractions
materials
consistently
superior
BCC
ones,
which
verifies
effectiveness
adaptability
taper
prismatic
for
potential
lightweight
applications.
Computation,
Год журнала:
2024,
Номер
12(4), С. 74 - 74
Опубликована: Апрель 4, 2024
Three-dimensional
porous
scaffolds
are
substitutes
for
traditional
bone
grafts
in
tissue
engineering
(BTE)
applications
to
restore
and
treat
injuries
defects.
The
use
of
computational
modelling
is
gaining
momentum
predict
the
parameters
involved
healing
cell
seeding
procedures
perfusion
bioreactors
reach
final
goal
optimal
growth.
Computational
based
on
finite
element
method
(FEM)
fluid
dynamics
(CFD)
two
standard
methodologies
utilised
investigate
equivalent
mechanical
properties
scaffolds,
as
well
flow
characteristics
inside
respectively.
success
a
simulation
hinges
selection
relevant
mathematical
model
with
proper
initial
boundary
conditions.
This
review
paper
aims
provide
insights
researchers
regarding
appropriate
(FE)
models
different
materials
CFD
regimes
bioreactors.
Thus,
these
FEM/CFD
may
help
create
efficient
designs
by
predicting
their
structural
haemodynamic
responses
prior
vitro
vivo
(TE)
applications.
