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1 phd position for NON-italian citizens at Politecnico di BARI - ITALY. Expires 12 sept

1 phd position for phd is reserved to non-italian citizens at Politecnico department of Mechanical engineering.

Attached the SELECTION CALL FOR ADMISSION TO THE RESEARCH DOCTORATE (Ph.D.) PROGRAMS – XXXIII CYCLE AT THE POLITECNICO DI BARI ACADEMIC YEAR 2017/2018 

Various options for research themes are available, also including solid mechanics, fatigue or contact mechanics.

See attachment or write for details at mciava AT poliba.it

Application expires on Sept.12 !!

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Some Closed-Form Results for Adhesive Rough Contacts Near Complete Contact on Loading and Unloading in the Johnson, Kendall, and Roberts Regime

Michele Ciavarella  Yang Xu Robert L. Jackson

Some Closed-Form Results for Adhesive Rough Contacts Near Complete Contact on Loading and Unloading in the Johnson, Kendall, and Roberts Regime

Journal of Tribology Copyright VC 2018 by ASME JANUARY 2018, Vol. 140 / 011402-1

 

Recently, generalizing the solution of the adhesiveless random rough contact proposed

by Xu, Jackson, and Marghitu (XJM model), the first author has obtained a model for

adhesive contact near full contact, under the Johnson, Kendall, and Roberts (JKR)

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A very simple estimate of adhesion of hard solids with rough surfaces based on a bearing area model

"A very simple estimate of adhesion of hard solids with rough surfaces based on a bearing area model" is in press in Meccanica, can be viewed at http://rdcu.be/s0lV Abstract In the present note, we suggest a single-line equation estimate for adhesion between elastic(hard) rough solids with Gaussian multiple scales of roughness.

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Susmel-Papuga sharp controversy about multiaxial fatigue criteria

I recently came across this sharp controversy between Papuga and Susmel on multiaxial fatigue criteria.  Papuga accuses Susmel of "picking up" data that he likes from the literature, disregarding other data... And of having some constants in the criteria that are set a posteriori as fitting parameters.   Do you know how this ended up?  Anyone else partecipated to the debate? 

 Comments on “A survey on evaluating the fatigue limit under multiaxial loading” by Jan...

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free public repositories of papers and books

I have been told that it is no longer needed to search for papers on regular libraries and libraries' services, as there is this web site which contains much more than even the best "legal" library www.sci-hub.cc

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GADeS Summer School on Stability and Bifurcation of Dynamical Systems: Theoretical Aspects and Applications

Dinamica e stabilità

First announcement of
GADeS Summer School on

Stability and Bifurcation of Dynamical Systems:
Theoretical Aspects and Applications

July 3-7, 2017, Savona, Italy

 

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Graphene layers give colourful warning

Graphene layers give colourful warning

Nature

 

543,

 

466

 

(23 March 2017)

 

doi:10.1038/543466a
Published online

 

22 March 2017

Article toSubject terms:

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A simple finding on variable amplitude (Gassner) fatigue SN curves obtained using Miner’s rule for unnotched or notched specimen

We provide a very simple result for a problem which has been often neglected (variable amplitude loading) in academia, but which is of paramount importance in real engineering situations, where fatigue is almost never "constant amplitude".

We found few cases where we could check this extremely simple result, but it worked very well.  We would welcome further verifications.

The paper is in press here.

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5th International Conference on Computational Contact Mechanics

Notice that the deadline for abstract submission has been extended to:  March 17, 2017. 

 

 

 

5-7 July 2017 / Lecce, Italy

 

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Politecnico di Milano creates a large debate in Italy with its decision to teach only in English

Recently, Politecnico di Milano in Italy has attempted to force all teaching at Master level in English.  This has been stopped by some academics who went to different levels of administrative courts, and recently there was a prononciation of the Supreme Court.  The matter is not settled yet, but you can find an account of this with various links here.

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Bigoni's group gets the 4th cover on Proc Roy Soc for Leonardo catapults

The top italian engineer Davide Bigoni gets his 4th cover in Proc. Roy. Soc. A in just 18 months 

See here.

 

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Nature paper about mechanical metamaterials violating Betti's theorem

Maybe because I am proud of Betti's theorem being italian, I am curious about this big emphasys on systems violating it.  They may "open avenues for energy absorption, conversion and harvesting, soft robotics, prosthetics and optomechanics".... ?  I'd be curious to hear some comments.   Anyway, the last author Andrea Alu is anyway italian like Betti.

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3D Printing Grand Challenge

Abstract Submission Extended to March 1st 2017

More information

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10th European Solid Mechanics Conference – ESMC 2018

 

Dear Colleague,

 

We are pleased to announce the 10th European Solid Mechanics Conference – ESMC 2018, which will be held in Bologna (Italy) during July 2-6, 2018
The Conference is organized by the University of Trento and the University of Bologna.

 

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moving singularities (crack analogues) in fretting fatigue

    The stress concentration induced by fretting fatigue was studied with a simple "Crack Analogue" model (CA) by the MIT group of Suresh in the late 1990's, which was then "improved" by the present author to take into account simply both contact loads and bulk stresses loads, and even the case of finite stress concentration in the so-called "Crack Like Notch Analogue" (CLNA) model.

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top italian scientists

I just read in the news about 3 italians who won the prestigeous CASE award.  They are relatively young, and I see do not have a very high H-index.  I think there was a discussion in Imechanica years ago about the fact that H-index is still an experimental data point where we don't know how else to judge a scientist.

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On Pastewka and Robbins' Criterion for Macroscopic Adhesion of Rough Surfaces

On Pastewka and Robbins' Criterion for Macroscopic Adhesion of Rough Surfaces

M. Ciavarella

[+] Author and Article Information

J. Tribol 139(3), 031404 (Nov 30, 2016) (5 pages)

Paper No: TRIB-16-1057; doi: 10.1115/1.4034530

History: Received February 15, 2016; Revised July 18, 2016

ARTICLE

REFERENCES

Abstract

Abstract | Introduction | A Simple Asperity Model | Pull-Off | Discussion | Conclusion | References

Pages

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