Journal of the Textile Institute,
Год журнала:
2022,
Номер
114(7), С. 1078 - 1089
Опубликована: Авг. 26, 2022
Auxetic
materials
are
the
that
expand
in
transverse
direction
when
stretched
longitudinal
direction.
Auxetics
a
boon
to
field
of
biomedical
engineering,
as
most
human
tissues
have
auxeticity.
In
case
repair
or
transplant
damaged
tissue
organ,
auxetic
structures
great
importance
they
conform
usual
body
mechanics.
Textile
and
been
used
engineering
for
decades.
Of
late,
textile
received
special
attention
due
intensive
research
technical
textiles.
This
review
focuses
on
application
engineering.
International Journal of Mechanical Sciences,
Год журнала:
2024,
Номер
275, С. 109364 - 109364
Опубликована: Май 6, 2024
A
novel
highly
compressible
auxetic
cementitious
composite
(ACC)
is
developed
in
this
work.
Contrary
to
conventional
materials,
such
as
plain
concrete
and
fiber
reinforced
concrete,
the
ACC
shows
strain-hardening
behavior
under
uniaxial
compression:
stress
continuously
increases
with
strain
up
approximately
40%
strain.
On
one
hand,
early
compression
stage,
exhibit
recoverable
deformability
of
10%
cyclic
loading
(20
times
higher
than
constituent
material).
In
addition,
fatigue
damage
until
stiffness/strength
energy
dissipation
plateau
values
are
reached
after
500
cycles.
At
2.5%
amplitude,
120
MPa/3
MPa,
while
these
only
25
MPa/1.2
MPa
at
5%
amplitude.
contrast,
independent
from
amplitude
remains
0.05J/cm3.
other
due
behavior,
exhibits
significantly
improved
capacity
compared
both
materials
frame.
This
achieved
by
a
tailored
action:
integrating
mortar
3D
printed
thermoplastic
polyurethane
(TPU)
rotating-square
mechanism
was
designed
for
TPU
frame
achieve
cracking
behavior.
The
horizontal
cells
enable
large
enlarging
crack
width
confinement
frame,
vertical
work
stiffening
phase
ensure
load
resistance.
Owing
outstanding
mechanical
properties,
great
potential
be
applied
engineering
practice
where
high
compressive
required,
instance
yielding
elements
squeezing
tunnel
linings.
Textile Research Journal,
Год журнала:
2023,
Номер
93(23-24), С. 5268 - 5306
Опубликована: Сен. 7, 2023
Auxetic
behavior
is
a
promising
new
area
for
use
in
defense
applications.
In
comparison
to
conventional
material,
an
auxetic
material
has
superior
properties
because
of
having
negative
Poisson’s
ratio;
it
gets
broadened
when
stretched
or
becomes
smaller
compressed.
Furthermore,
materials
have
enhanced
such
as
shear
resistance,
indentation
fracture
toughness,
energy
absorption,
and
so
on.
These
improved
make
very
appealing
the
potential
revolutionize
their
applications
aerospace,
sports,
automotive,
construction,
biomedical
engineering,
smart
sensors,
packaging,
cushioning,
air
filtration,
shock
absorption
sound
insulation,
personal
protective
equipment.
This
article
examines
most
recent
scientific
advances
structures,
textiles
(fibers,
yarns,
fabrics),
textile-reinforced
composites,
foams,
well
exceptional
various
approaches
achieving
them.
Although
many
been
proposed,
actual
are
still
limited.
in-depth
review
article,
its
main
goal
serve
foundation
future
studies
concerning
topic.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 3, 2024
Abstract
Textile‐based
electromechanical
sensors
are
increasingly
used
as
wearable
for
various
applications,
such
health
monitoring
and
human‐machine
interfaces.
These
becoming
popular
they
offer
a
comfortable
conformable
sensing
platform
possess
properties
that
can
be
tuned
by
selecting
different
fiber
materials,
yarn‐spinning
techniques,
or
fabric
fabrication
methods.
Although
it
is
still
in
its
early
stages,
recent
attempts
have
been
made
to
introduce
auxeticity
textile
enhance
their
sensitivity.
Having
negative
Poisson's
ratio,
i.e.,
undergoing
expansion
laterally
when
subjected
tensile
forces
contraction
under
compressive
forces,
makes
them
distinct
from
conventional
with
positive
ratio.
This
unique
feature
has
demonstrated
great
potential
enhancing
the
performance
of
sensors.
review
presents
an
overview
based
on
auxetic
textiles
(textiles
materials
and/or
non‐auxetic
but
structures),
specifically
focusing
how
deformation
impacts
performance.
Sensors
working
mechanisms,
including
piezoelectric,
triboelectric,
piezoresistive,
piezocapacitive,
covered.
It
envisioned
incorporating
capabilities
into
will
significantly
advance
technology,
leading
new
monitoring,
fitness
tracking,
smart
clothing.
