User login

Navigation

You are here

Snap-through actuation of thick-wall electroactive balloons

Stephan Rudykh's picture


Snap-through actuation of thick-wall electroactive balloons

Stephan Rudykh (a), (c), Kaushik Bhattacharya  (c) and Gal deBotton (a), (b)

(a) Department of Mechanical Engineering, Ben-Gurion University, 84105 Beer-Sheva, Israel

(b) Department of Biomedical Engineering, Ben-Gurion University, 84105 Beer-Sheva, Israel

(c) Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA 91125, United States

  
  
Abstract

Solution to the problem of a spherical balloon made out of an electroactive polymer which is subjected to coupled mechanical and electrical excitations is determined. It is found that for certain material behaviors instabilities that correspond to abrupt changes in the balloon size can be triggered. This can be exploited to electrically control different actuation cycles as well as to use the balloon as a micro-pump.

 

DOI:10.1016/j.ijnonlinmec.2011.05.006

Comments

Xuanhe Zhao's picture

Stephan:

This is a very nice work on snap-through instability of dielectric-elastomer balloons. You may be interested in our recent study on the snap-through instability of free-standing dielectric elastomers under voltages.

http://imechanica.org/node/8113

http://imechanica.org/node/1283

Thanks,

XH

Stephan Rudykh's picture

Xuanhe,

Thank you. Sure, these are very interesting and I am aware of. I am looking forward to reading your new works on the topic. 

 

Best,

Stephan 

Zhigang Suo's picture

 Snap-through instability is interesting.  Here is a recent paper on snap-through expansion of a gas bubble:

Jian Zhu, Tiefeng Li, Shengqiang Cai, and Zhigang Suo. Snap-through expansion of a gas bubble in an elastomer . The Journal of Adhesion 87, 466-481 (2011).

Stephan Rudykh's picture

Thank you, it is a very intersting work on the topic. It reminded me the fruitfull discussion  (here, at imechanica) initiated by a friend of mine, Oscar Lopez-Pamies

  

Thanks for sharing .Keep posting articles like this. A good example of content presentation. A piece of information from you every now and then is really great. Everything was so well coordinated and looked so aesthetically pleasing to the eye. Great job! Admission Essay - Buy Lab Report - Book Report

Your blog is great. Your thoughts are also very good and i am very inspired from your post. That is why I visit this blog again and again and will come back in future too. Thesis Proposal - Research Proposal

Subscribe to Comments for "Snap-through actuation of thick-wall electroactive balloons"

More comments

Syndicate

Subscribe to Syndicate