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Multifunctional “Hydrogel Skins” on Diverse Polymers with Arbitrary Shapes

Thu, 2018-12-20 19:56 - hyunwoo
research
hydrogel
coating
medical devices
adhesion
friction
debonding

In this paper, we introduce a new simple yet effective strategy to form "hydrogel skins" on polymer-based medical devices with arbitrary shapes. Hydrogel skins can convert any surface of polymer devices into robust, wet, soft, slippery, antifouling, and ionically conductive without affecting the original properties and geometries.

Abstract

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Simulating crack growth in Ansys implementing Cohesive Zone Model (CZM)

Wed, 2011-05-04 15:17 - Denis Pryadko
Forums: 
Fracture Mechanics Forum
Free Tags: 
cohesive zone model
debonding

Hello, everyone!

Could you, please, help me with the following issue?

I’m trying to simulate a crack growth in an anisotropic media using cohesive zone model (CZM), and the results I get do not agree with my expectations, based on a common sense and simple estimations.

As I don’t yet feel myself on a safe ground with APDL, I make use of Ansys Mechanical, implementing command objects where needed.

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Relation between particle size and debonding stress

Sun, 2009-10-25 06:34 - CeciliaPisano
Forums: 
Fracture Mechanics Forum
Free Tags: 
interface
nanocomposites
size
debonding
Particle
clay
critical stress

Hi everybody,

do you know where I can find some informations about the relation

between particle size and critical normal stress at the interface particle /matrix

for a particle embedded in a matrix?

I read the Chen's article 'Size effect of particles on the damage dissipation in nanocomposites'

but this article deals with spherical particles. I am studying clay/matrix nanocomposites and I would like to

calculate the relation between clay size and debonding stress.

Thanks,

Cecilia

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Particle size and debonding stress

Thu, 2009-10-22 11:59 - CeciliaPisano
nanocomposites
Particles
size
debonding
normal stress

Hi everybody,

do you know where I can find some informations about the relation

between particle size and critical normal stress at the interface particle /matrix

for a particle embedded in a matrix?

I read the Chen's article 'Size effect of particles on the damage dissipation in nanocomposites'

but this article deals with spherical particles. I am studying clay/matrix nanocomposites and I would like to

calculate the relation between clay size and debonding stress.

Cecilia

»
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