Magnetically induced deformation of isotropic magnetoactive elastomers and its relation to the magnetorheological effect
Physical Review Applied,
Год журнала:
2025,
Номер
23(3)
Опубликована: Март 19, 2025
Can
isotropic
magnetoactive
elastomers
(MAEs)
undergo
giant
magnetically
induced
deformations
and
exhibit
huge
magnetorheological
effects
simultaneously?
In
this
experimental
theoretical
study,
we
reveal
how
the
macroscopic
deformation
of
MAEs
relates
to
process
particle
restructuring
caused
by
application
a
magnetic
field.
For
purpose,
MAE
cylinders
with
different
aspect
ratios
loadings
are
studied
in
uniform
fields.
The
axial
acquired
using
an
optical
camera.
A
unified
mean-field
model
proposed
previous
studies
is
adapted
describe
transition
initially
into
transversely
ones.
This
mechanical
rearrangement
particles
dense
columnar
structures
aligned
field
believed
result
effect.
Our
however
predicts
less
than
threefold
increase
elastic
moduli
when
evaluated
along
direction.
prediction
based
on
careful
examination
shear
structures.
weak
effect
explains
significant
measured
strong
would
hinder
due
modulus
several
orders
magnitude.
Not
only
influenced
microstructure
evolution,
but
so
magnetization
particles,
which
increases
as
they
rearrange
columns.
With
show
that
provides
quantitative
access
hidden
material
properties
such
stiffness
samples
shapes
evolving
microstructures.
Published
American
Physical
Society
2025
Язык: Английский
Preservation of wetting ridges using field-induced plasticity of magnetoactive elastomers
Journal of Colloid and Interface Science,
Год журнала:
2024,
Номер
683, С. 1019 - 1027
Опубликована: Дек. 20, 2024
The
presence
of
a
wetting
ridge
is
crucial
for
many
phenomena
on
soft
substrates.
Conventional
experimental
observations
require
permanent
droplet.
magnetic
field-induced
plasticity
effect
(FIPE)
magnetoative
elastomers
(MAEs)
allows
one
to
overcome
this
limitation.
Depositing
droplet
onto
an
MAE
surface
and
applying
field
fixes
the
in
place
due
FIPE.
can
be
removed
investigate
with
ease
using
conventional
optical
methods.
Язык: Английский