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Mike Ciavarella's blog

Strain gradient plasticity: the flow rule of Fleck and Hutchinson violates thermodynamics ?

Submitted by Mike Ciavarella on

A recent paper on JMPS has seriously questioned the foundation of the SGP theory of Fleck and Hutchinson.  The matter is not simple, but is it a good bench test for imechanica to discuss?

doi:10.1016/j.jmps.2008.12.002    

a couple of recently published papers in contact mechanics -- roughness and dynamic rolling

Submitted by Mike Ciavarella on

For those interested in a classical subject like contact mechanics, here are a couple of recent papers published in August.  One is an extension of the Greenwood Williamson theory of rough contact, and the other is a linear perturbation solution of the classical Carter rolling contact problem for a rolling cylinder, when the surface is corrugated and hence there are oscillations in both normal and tangential loads.

China: The prizes and pitfalls of progress

Submitted by Mike Ciavarella on

Remember when I spoke of the Easterlin paradox (a key concept in happiness economics postulated by Richard Easterlin in the 1974 paper "Does Economic Growth Improve the Human Lot? Some Empirical Evidence."[1]
It finds that, contrary to expectation, happiness at a national level

Mars and Venus - How Europeans and Americans View and Use Science - ESOF July20th -Part 1: The Eu Perspective -

Submitted by Mike Ciavarella on

From ESOF, an interesting presentation, attached. 

Mars and Venus

How Europeans and Americans

View and Use Science<

Part 1: The European Perspective

Dr Roland Schenkel, Director General, European Commission, Joint Research Centre (JRC)

 Some quotes

The full list of journals ranked by H index --- but not the list of highlycited papers :(

Submitted by Mike Ciavarella on

After some conversation with Roozbeh which are "irritatingly useful" :) I found that this site has done already all the calculations we need http://www.scimagojr.com/&nbsp; except the list of highlycited papers which remains for me the most interesting aspect and which we seem to need to do manually as we did yesterday with IJSS and JMPS at Most cited papers and H-factor of some mechanics journals -- IJSS

Some results are attached as a big PDF file.

Most cited papers and H-factor of some mechanics journals -- IJSS

Submitted by Mike Ciavarella on

IMPORTANT UPDATE JULY 18

The full list of journals ranked by H index

It is possible to rank journals equally as authors, using e.g. the Harzing Publish or Perish sofware based on Google Scholar. I did the excercise for IJSS. It turns out the H-index is 78 (slightly higher than even the best authors in solid mechanics, but not stellar).  In the most highlycited papers, we find good names, but not stellar papers.

The results may be affected by the limitations of the software.