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The Nobel, Graphene and 20% Google

Submitted by Jose Berengueres on
 
 
 
Only after learning that 2010 nobelists AK Geim and Novoselov* got the
 inspiration for Graphene during a 20% time break from "ongoing"
lab research. Did I realize how important is to have a "scheduled" free mind 
and open Lab environment.
 
Does your lab practice "crazy friday" experiments jam sessions like Dr. Geim Lab in Manchester?
 

Double effective stress of porous media (by Li chuanliang)

Submitted by S.H. Zhu on

At present, the concept of effective stress has undergone three periods:

1. Terzaghi's effective stress         

            σeff= σ-p

 2. Biot’s effective stress

              σeff= σ-αp

 3. Double effective stress

ABAQUS

Submitted by Manjesh on

Hi everybody,

          Can anybody tell me what is the difference between these two field outputs in ABAQUS?? First one is CPRESS and the other one is PRESSURE which comes under stress output??? Actually I want to know normal pressure for my work. Which one of these two will give me Normal pressure??? Thanks..

Number of registered users of iMechanica exceeds 20,000

Submitted by Teng Li on

As of 11 May 2010, the number of registered users of iMechanica exceeded 20,000 , the total number of posts is 8191, the total number of comments is 14557.  The growth of iMechanica community remains steady since its launch.



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