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Challenges in modeling of CNT/polymer composites

Submitted by Kazem Yazdchi on

Many researchers have already used micromechanical modeling techniques such as Mori-Tanaka (M-T), Self-consistent methods and dilute inclusion models depending on volume fraction and shape of the inclusions, etc., to predict the overall mechanical properties of CNT/polymer composites.  However, we know that at nano scales the phenomenological behavior of material is different in comparison with micro or macro scales. Although the effects of waviness, interactions, agglomeration, etc.

lack of sensitivity

Submitted by adelajda on

Hi everybody.  My name is Ada. I am a new user on this forum.

I am working with microcantilevers (MCs). Recently I experienced lack of sensitivity. I use  MCs coated with nanostructured gold and I use SAM to attach different biological molecules e.g. Protein A, IgG, antiIgG. Everything was working fine until recently.

Would enybody have any sugestions what might be wrong?

Thanks,

Ada 

Berger on Video Solutions for Teaching Mechanics

Submitted by Carl T. Herakovich on

Professor Ed Berger, Univeristy of Virginia Mechanical Engineering, is featured in the Chronicle of Higher Education for his use of web technologies and, in particular, "video solutions" for teaching undergraduate mechanics courses.

Perhaps we should make a useful exercise for iMechanicians

Submitted by Mike Ciavarella on

Zhigang, about defining "esthablished", I am worried people may consider arbitrary your "definition" -- not me, you can do as you like!

But look that even somebody as weak as me could be in the list you propose!!, and for different criteria! Only Nix and Hutchinson really stand high in the lists as "esthablished". Incidentally, congratulations: the most cited paper of Hutchinson is that with you.

The 2008 Melosh Medalists

Submitted by John E. Dolbow on

On Friday, April 25th, 2008, the 20th Annual Melosh Competition for the Best Student Paper in Finite Element Analysis was held at Duke University.  The competition resulted in a tie between Ludovic Chamoin (of the University of Texas, Austin) and Irina Kalashnikova (of Stanford University).   Here is a picture of the 2008 Melosh Medalists with the judges, Leo Franca and Nicolas Moes:

 

 From L to R: Leo Franca, Ludovic Chamoin, Irina Kalashnikova, Nicolas Moes.