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Ruobing Bai's picture

Tearing a hydrogel of complex rheology

Dear colleagues,

I would like to share with you our latest paper focusing on the fracture of hydrogels of complex rheology.

 

Title: Tearing a hydrogel of complex rheology

Authors: Ruobing Bai, Baohong Chen, Jiawei Yang, Zhigang Suo*

Abstract:

johangaume's picture

PhD and PostDoc positions in Computational Snow and Avalanche Mechanics @EPFL, Lausanne, Switzerland

The new group of Prof. J. Gaume at the Swiss Federal Institute of Technology of Lausanne (EPFL, Switzerland) invites applications by highly motivated, committed, and talented students/researchers for 2 PhD and 1 PostDoc positions in the field of Computational Mechanics for Snow and Avalanche Modeling.

Zhigang Suo's picture

FRAME INDIFFERENCE

The attached notes are written for a course on plasticity.  When I update the notes, I will post a link on my twitter account:  https://twitter.com/zhigangsuo.

Zhigang Suo's picture

Rigid-plastic flow

The attached notes are written for a course on plasticity.  When I update the notes, I will post a link on my twitter account:  https://twitter.com/zhigangsuo.

Zhigang Suo's picture

Nonlinear viscosity

The attached notes are written for a course on plasticity.  When I update the posts, I will write a note on my twitter account:  https://twitter.com/zhigangsuo.  

Zhigang Suo's picture

Viscosity

The attached notes are written for a course on plasticity.  I will update new posts on my twitter account:  https://twitter.com/zhigangsuo.  

Zhigang Suo's picture

Strain hardening

The attached notes are written for a course on plasticity.  I will update new posts on my twitter account:  https://twitter.com/zhigangsuo.  Rheology is the science of deformation. This science poses a question for every material: given a history of stress, how do we find the history of strain?

Living cells behave as fluid-filled sponges

Animal cells behave like fluid-filled sponges in response to being mechanically deformed according to new research published in Nature Materials.

Scientists from the London Centre for Nanotechnology at UCL have shown that animal cells behave according to the theory of ‘poroelasticity’ when mechanically stimulated in a way similar to that experienced in organs within the body. The results indicate that the rate of cell deformation in response to mechanical stress is limited by how quickly water can redistribute within the cell interior.

farhan3d's picture

Viscoelastic properties of pre- and post-cure cellular rubbers using rheometer

Hi All,

I would like to know if anyone has had the opportunity to investigate cellular rubbers rheology. I am thinking of characterizing the viscoelastic properties of cellular rubber during cure and after cure in the rheometer, using ASTM D6601. What I am expecting is a distorted cellular structure due to very constrained foam expansion during the blowing agent's decomposition, so the results would obviously be different than the ones obtained from a DMTA machine.

Would like to hear from anyone with some rheology / viscoelastic characterization experience.

andrewsun's picture

First post - about rheology

The first post on iMechanica, which is an interesting site. First, it is scientists/engineers-targeted which is hard to get so crowded. And second it is exceptionally free. Everyone is free to post everything including ads, and there is no maintenance of "academic standard" or "quality" over here. However all the post I can see are of the topic of mechanics. I believe I will find it more interesting and helpful in the future.

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