thermodynamics

Successful applicants will work on the mechanics and thermodynamics of porous solids undergoing reactive flow within the scope of the DOE-funded center on Geo-processes in Mineral Carbon Storage (GMCS, https://gmcs.umn.edu). The mission of GMCS is to develop the fundamental science and engineering capability that will lead to realizing the full potential for large-scale subsurface storage of CO2 via mineralization.

The workshop takes place on-line only on June 14 from 2 PM CET. It is intended to serve as a networking event, where interested researchers present their focused domain. The subsequent brainstorming will help us to evaluate whether there is a will for a broader cooperation among the participants, and if to transform this workshop into something more regular.

If you do not feel strong enough to present, you are still invited to join us - simply let me know to my e-mail address to get the access to the workshop. No fee requested.

Traditionally dynamic analysis is done using Newton’s universal laws of the equation of motion. According to the laws of Newtonian mechanics, the x, y, z, space-time coordinate system does not include a term for energy loss, an empirical damping term “C” is used in the dynamic equilibrium equation. Energy loss in any system is governed by the laws of thermodynamics. Unified Mechanics Theory (UMT) unifies the universal laws of motion of Newton and the laws of thermodynamics at ab-initio level.

The unified mechanics theory (UMT) is ab-initio unification of the second law of thermodynamics and Newton's universal laws of motion, in which Boltzmann's second law of entropy formulation governs dissipation & degradation. Hence, the unified mechanics theory does not require any empirical dissipation & degradation potential function or an empirical void evolution function. Material degradation is quantified on the Thermodynamic state index (TSI) axis based on the specific entropy production, which starts at zero and asymptotically approaches one at failure.

The unified mechanics theory (UMT) was used to develop a model to predict the fatigue life of pre-corroded steel samples with BCC structure. Details of the experimental validation are also provided.

https://doi.org/10.1016/j.matdes.2022.111383

Thermodynamics 2.0 Conference [online] has waived the registration fee.

The conference is about Thermodynamics in relation to other disciplines including Mechanics.

My talk on Wednesday at noon is about the Unification of Mechanics and Thermodynamics. 

https://iaisae.org/index.php/speakers/

The Department of Engineering at Aarhus University has a number of open positions as Assistant Professor (tenure track) or Associate Professor at the Section of Mechanical Engineering. The University seeks innovative and visionary engineers/researchers capable of developing the research in Mechanical Engineering.

The positions are available from October 1, 2019 or as soon as possible hereafter.

I highly recommend this paper to any mechanician who is familiar with the scientific efforst in the last 150 years to unify mechanics and thermodynamics. Sosnoskiy and Sherbakov and several others from the Russian Academy of Sciences listed in the Acknowledgemnsts have achieved it. Congratulations.

Sosnovskiy, L. Sherbakov, S.,”Mechanothermodynamic Entropy and Analysis of Damage State of Complex Systems”, Entropy, 2016, 18, 268.

Department of Engineering (ENG), Aarhus University (AU) invites applications for a number of positions as tenure track assistant professors or associate professors in the field of Mechanical Engineering (ME). The University has ambitious plans to increase its activities significantly within research and education as well as public and industrial collaboration with the vision of bringing AU into the global engineering elite.

One Internet, multiple worlds.  People have gone mobile, but iMechanica has not.  Although iMechanica is accessible from mobile phones, but it was not designed as such.  On the other hand, mobile social networks are good mostly for short forms.  A practical solution seems to be posting on iMechanica and linking the entries to social networks, such as twitter, wechat, and Facebook.  For example, The New Yorker has a strong presence on Facebook, as my sons and their friends would say.   

I'll be teaching an undergraduate course on engineering thermodynamics.  We will use the textbook by Cengel and Boles.  I will supplement the textbook using my own notes on thermodynamics.

Freely available until Aug. 8th: http://authors.elsevier.com/a/1RDyK57Zjcoxj

A single strand of polymer is a chain of a large number of monomers.  The monomers are joined by covalent bonds, and two bonded monomers may rotate relative to each other.  At a finite temperature, the polymer rapidly changes from one configuration to another.  When the two ends of the polymer are pulled by a force, the distance between the two ends changes.  The polymer is known as an entropic spring.

After many publications and lecture notes, Prof. Ian Murdoch has finally organized much of that material in the form of a book.

I am very hopeful that like Prof. Murdoch's lectures, this monograph will also help the readers to develop a better understanding of the physical aspects of mechanics. It will be a valuable addition to the researchers' personal collection. 

Link:

http://www.cambridge.org/gb/knowledge/isbn/item6828574

more details in the flyer attached.

I have divided the old notes on temperature into three parts:

• Principle of the conservation of energy
• Empirical observations of temperature (this part)
• Energy and fundamental postulate 

Our feeling of hotness comes from everyday experiences. These experiences indicate that many levels of hotness exist, and that all levels of hotness can be mapped to a real variable.