Enhancement of adhesion strength through microvibrations: Modeling and experiments
Journal of the Mechanics and Physics of Solids,
Journal Year:
2025,
Volume and Issue:
unknown, P. 106020 - 106020
Published: Jan. 1, 2025
Language: Английский
Rapid detachment of a rigid sphere adhered to a viscoelastic substrate: an upper bound model incorporating Maugis parameter and preload effects
Journal of the Mechanics and Physics of Solids,
Journal Year:
2025,
Volume and Issue:
unknown, P. 106028 - 106028
Published: Jan. 1, 2025
Language: Английский
Influence of temperature and crack-tip speed on crack propagation in elastic solids
The Journal of Chemical Physics,
Journal Year:
2024,
Volume and Issue:
161(18)
Published: Nov. 11, 2024
I
study
the
influence
of
temperature
and
crack-tip
velocity
bond
breaking
at
crack
tip
in
rubber-like
materials.
Bond
is
considered
as
a
stress-aided
thermally
activated
process
results
an
effective
propagation
energy,
which
increases
strongly
with
decreasing
or
increasing
speed.
This
effect
particularly
important
for
adhesive
(interfacial)
but
less
cohesive
(bulk)
owing
to
much
larger
bond-breaking
energies
latter
case.
For
cracks,
theory
are
consistent
adhesion
measurements
silicone
rubber
polydimethylsiloxane
(PDMS)
contact
silica
glass
surfaces.
agrees
well
experimental
PDMS
films
chemically
bound
silanized
glass.
Language: Английский
Long-term adhesion durability revealed through a rheological paradigm
Science Advances,
Journal Year:
2025,
Volume and Issue:
11(11)
Published: March 14, 2025
The
question
of
how
long
an
object
can
adhere
to
a
surface
has
intrigued
scientists
for
centuries.
Traditional
studies
focus
on
rapid
crack-propagation
detachment
and
account
only
short-term
adhesion
governed
by
interfacial-viscoelastic
dissipation,
failing
explain
long-term
phenomena
like
sudden
after
prolonged
adherence
predict
corresponding
lifetimes.
Here,
we
investigate
the
through
rheological
paradigm
using
both
theory
experiment.
By
considering
bulk
rheology
interfacial
viscoelasticity
mechanisms,
show
that
durability
is
competition
between
them.
This
understanding
leads
accurate
lifetime
predictions,
which
validate
experiments.
In
addition,
our
study
reveals
previously
undocumented,
counterintuitive
phenomenon
unique
adhesion:
expansion
contact
area
under
tensile
forces,
in
contrast
always
shrinks
during
detachment.
research
fills
critical
gap
physics.
Language: Английский
An asymptotic model of vibroadhesion
International Journal of Non-Linear Mechanics,
Journal Year:
2025,
Volume and Issue:
unknown, P. 105089 - 105089
Published: March 1, 2025
Language: Английский
Quantify the failure zone and elastic release zone: A new insight into intrinsic fracture of polymer networks
Extreme Mechanics Letters,
Journal Year:
2025,
Volume and Issue:
unknown, P. 102362 - 102362
Published: May 1, 2025
Language: Английский
Force and pose control of a hemispherical ultrasonic probe in contact with viscoelastic gelatine
Meccanica,
Journal Year:
2024,
Volume and Issue:
60(1), P. 39 - 54
Published: Nov. 29, 2024
Abstract
Ultrasound
probes
are
widely
employed
for
internal
sonification,
to
detect
anomalies
and
assess
mechanical
properties.
Achieving
precise
contact
orientation
control
is
crucial
optimizing
the
transmission
of
acoustic
energy
into
test
material.
This
study
investigates
a
hemispherical
probe
against
viscoelastic
gelatin
(tissue-like)
object.
For
small
applied
loads,
signals
from
force
sensor
often
contaminated
with
noise.
To
enhance
measurements,
an
ultrasound
was
designed
Hertzian
gelatin.
The
transmitted/reflected
known
be
function
area,
which
can
related
force.
transmitted
reflected
energy,
depends
on
goal
develop
adaptive,
model-free
algorithm
maximize
transfer.
integrates
at
interface
data
as
feedback.
A
multi-input
fuzzy
controller
scheme
that
robust
noise
operates
in
real
time
proposed.
Numerical
experimental
results
demonstrate
controller’s
stability
its
ability
rapidly
converge
desired
conditions.
Language: Английский