Journal of Sandwich Structures & Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 24, 2025
Polymer
foams
are
widely
used
in
human
body
protection
but
require
combination
with
impact-resistant
materials
for
adequate
performance.
Inspired
by
walnut
shells,
this
study
developed
a
novel
bidirectional
protective
anti-sandwich
structure
(BPAS)
protection.
The
nonlinear
hyperelastic
and
viscoelastic
behaviors
of
TPU
foam
were
simulated
using
the
compressible
Hyperfoam
model
Rayleigh
damping,
accuracy
finite
element
was
verified
falling
ball
impact
tests.
By
comparing
pure
(PFS)
traditional
sandwich
(TSS),
BPAS
showed
more
uniform
moderate
stress
distribution,
transfer,
deformation
under
demonstrating
special
property,
which
is
attributed
to
energy
dispersion
its
upper
foam,
lateral
redistribution,
dissipation
effects
rigid
core.
effective
assisting
structural
design
performance
prediction
BPAS,
also
exhibited
excellent
capability
boxing.
Virtual and Physical Prototyping,
Год журнала:
2023,
Номер
18(1)
Опубликована: Окт. 10, 2023
Despite
the
limitations
imposed
by
their
composition,
natural
materials
overcome
trade-off
between
strength
and
ductility
through
unique
structural
features.
Inspired
crossed-lamellar
structure
of
conch
shells,
SS316L-IN625
heterostructured
were
designed
fabricated
laser
directed
energy
deposition
(LDED).
Interestingly,
this
bionic
material
(BHM)
breaks
strength-ductility
constitutive
with
a
tensile
731.74
MPa
uniform
elongation
34.98%.
This
particular
multi-scale
periodic
distributions
interfaces
deliver
BHM
superior
performance
combinations
beyond
rules
mixtures.
The
strain
gradient
induced
heterogeneous
deformation
activates
additional
slip
systems,
band
delays
premature
necking
in
SS316L
region
hinders
crack
propagation.
takes
full
advantage
intrinsic
IN625
toughness
to
stimulate
multiple
enhancement
toughening
mechanisms.
National Science Review,
Год журнала:
2023,
Номер
11(3)
Опубликована: Дек. 13, 2023
ABSTRACT
Flexible
devices
and
functional
systems
with
elaborated
three-dimensional
(3D)
architectures
can
endow
better
mechanical/electrical
performances,
more
design
freedom,
unique
functionalities,
when
compared
to
their
two-dimensional
(2D)
counterparts.
Such
3D
flexible
devices/systems
are
rapidly
evolving
in
three
primary
directions,
including
the
miniaturization,
increasingly
merged
physical/artificial
intelligence
enhanced
adaptability
capabilities
of
heterogeneous
integration.
Intractable
challenges
exist
this
emerging
research
area,
such
as
relatively
poor
controllability
locomotion
soft
robotic
systems,
mismatch
bioelectronic
interfaces,
signal
coupling
multi-parameter
sensing.
By
virtue
long-time–optimized
materials,
structures
processes,
natural
organisms
provide
rich
sources
inspiration
address
these
challenges,
enabling
manufacture
many
bioinspired
devices/systems.
In
Review,
we
focus
on
summarize
representative
concepts,
manufacturing
methods,
principles
structure-function
relationship
broad-ranging
applications.
Discussions
existing
potential
solutions
future
opportunities
also
provided
usher
further
efforts
toward
realizing
precisely
programmed
shapes,
high-level
intelligence.
Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials,
Год журнала:
2024,
Номер
155, С. 106555 - 106555
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(28), С. 37122 - 37130
Опубликована: Июль 2, 2024
Light
weight,
thinness,
transparency,
flexibility,
and
insulation
are
the
key
indicators
for
flexible
electronic
device
substrates.
The
common
substrates
usually
polymer
materials,
but
their
recycling
is
an
overwhelming
challenge.
Meanwhile,
paper
limited
in
practical
applications
because
of
poor
mechanical
thermal
stability.
However,
natural
biomaterials
have
excellent
properties
versatility
thanks
to
organic-inorganic
multiscale
structures,
which
inspired
us
design
nanocomposite
film.
For
this
purpose,
a
bio-inspired
film
was
developed
using
cellulose
nanofibers
with
abundant
hydrophilic
functional
groups
assist
dispersing
hydroxyapatite
nanowires.
thickness
biosustainable
only
40
μm,
it
incorporates
distinctive
(strength:
52.8
MPa;
toughness:
0.88
MJ
m
Abstract
The
heterogeneous
micromechanical
properties
of
biological
tissues
have
profound
implications
across
diverse
medical
and
engineering
domains.
However,
identifying
full‐field
elastic
soft
materials
using
traditional
approaches
is
fundamentally
challenging
due
to
difficulties
in
estimating
local
stress
fields.
Recently,
there
has
been
a
growing
interest
data‐driven
models
for
learning
mechanical
responses,
such
as
displacement
strain,
from
experimental
or
synthetic
data.
research
studies
on
inferring
materials,
more
problem,
are
scarce,
particularly
large
deformation,
hyperelastic
materials.
Here,
physics‐informed
machine
approach
proposed
identify
the
elasticity
map
nonlinear,
deformation
This
study
reports
prediction
accuracies
computational
efficiency
neural
networks
(PINNs)
maps
with
structural
complexity
that
closely
resemble
real
tissue
microstructure,
brain,
tricuspid
valve,
breast
cancer
tissues.
Further,
improved
architecture
applied
three
constitutive
models:
Neo‐Hookean,
Mooney
Rivlin,
Gent.
network
consistently
produces
accurate
estimations
maps,
even
when
up
10%
noise
present
training
Biomimetics,
Год журнала:
2024,
Номер
9(9), С. 545 - 545
Опубликована: Сен. 9, 2024
Biological
structures
optimized
through
natural
selection
provide
valuable
insights
for
engineering
load-bearing
components.
This
paper
reviews
six
key
strategies
evolved
in
nature
efficient
mechanical
load
handling:
hierarchically
structured
composites,
cellular
structures,
functional
gradients,
hard
shell–soft
core
architectures,
form
follows
function,
and
robust
geometric
shapes.
The
also
discusses
recent
research
that
applies
these
to
design,
demonstrating
their
effectiveness
advancing
technical
solutions.
challenges
of
translating
nature’s
designs
into
applications
are
addressed,
with
a
focus
on
how
advancements
computational
methods,
particularly
artificial
intelligence,
accelerating
this
process.
need
further
development
innovative
material
characterization
techniques,
modeling
approaches
heterogeneous
media,
multi-criteria
structural
optimization
advanced
manufacturing
techniques
capable
achieving
enhanced
control
across
multiple
scales
is
underscored.
By
highlighting
holistic
approach
designing
components,
advocates
adopting
similarly
comprehensive
methodology
practices
shape
the
next
generation
Nanoscale,
Год журнала:
2024,
Номер
16(6), С. 3011 - 3023
Опубликована: Янв. 1, 2024
The
peptide@PEG@MNCs
can
specifically
capture
E.
coli
from
a
bacterial
mixture.
antimicrobial
susceptibility
of
the
captured
be
analyzed
thereafter
by
applying
sensitive
luminescent
probe
within
30
min.
