iMechanica

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Webinar

January 16; 3pm EST

Speaker: Amanda Howard (Pacific Northwest National Laboratory)

Title: Multifidelity, domain decomposition, and stacking for improving training for physics-informed networks

In this recent EML paper, we show the stark effect of curvature on the performance of metamaterials, both in the static and dynamic domains. Read more at: https://doi.org/10.1016/j.eml.2024.102285

Dear colleagues,  

We are pleased to invite you to contribute to the invited mini-symposium we are organizing entitled "Computational Techniques for Nanocomposite and Nanostructured Materials Modeling" at COMPLAS 2025.  

A post-doc and a PhD position are available at the Multiscale Mechanics and Multiphysics of Materials Lab at the University of Brescia, https://m4lab.unibs.it/. Candidates will work with an international team, in a friendly and hard-working environment.

Applications are invited for a Ph.D. studentship in the Departments of Aeronautics. The research project will be supervised by Dr V.L. Tagarielli and Prof F. Montomoli and it will involve collaboration with Baker Hughes (Florence, Italy) and the Brahmal Vasudevan Institute for Sustainable Aviation.

Nonlinear continuum mechanics allows solving problems beyond the scope of the theory of linear elasticity for solids and the Navier-Stokes theory for fluids. The success of the nonlinear continuum mechanics would be impossible, of course, without its happy marriage to numerical methods that flourished after the computer revolution. Nowadays, the nonlinear continuum approach is used to model fracture.

I am happy to share our paper entitled 'Effect of notch root radius on apparent fracture toughness of Ti6Al4V alloy: experiments and simulations' recently published in International Journal of Fracture. 

Just published on JMPS

A Postdoctoral Fellow is sought to fill an immediate opening in the Gross Materials Lab at the University of South Carolina to work on a DARPA funded project. The postdoc will have the opportunity to attend regular meetings with DARPA and other DOD program managers. The research is focused on extracting yield surfaces from data rich full-field experimental information by solving an inverse problem. This research will be primarily computational and will integrate closely with a graduate student conducting experiments.

AbstractHigh-frequency micrometrical vibrations have been shown to greatly influence the adhesive performance of soft interfaces, however a detailed comparison between theoretical predictions and experimental results is still missing. Here, the problem of a rigid spherical indenter, hung on a soft spring, that is unloaded from an adhesive viscoelastic vibrating substrate is considered. The experimental tests were performed by unloading a borosilicate glass lens from a soft PDMS substrate excited by high-frequency micrometrical vibrations.

We are hiring a postdoc to work on the mechanics of solid state batteries. The postdoc will be based at the Mechanics of Materials Lab (Department of Engineering Science, University of Oxford) and work co-supervised by Profs Laurence Brassart and Emilio Martinez-Paneda. A close collaboration with experimentalists in the Pasta Group (Materials Department) is also expected.

Dear Colleagues,

The University of Wyoming is accepting applications for the Distinguished Postdoctoral Fellows Program, a two-year interdisciplinary research position focusing on AI applications in several selected areas. 

I am pleased to share our first open-access article of 2025! just published in #ActaMaterialia.

It turns out that friction coefficient 0.25 suggested as universal by Leonardo da Vinci more than 500 years ago has some universaility, as minimum friction coefficient for any granular material: it makes me proud as italian ;) I guess it would be interesting to show this experimental result also theoretically or numerically, any interest? [HTML] 

Dear Colleagues, 

We are organizing a mini-symposium 801 - Recent Trends in Data-Driven and Computational Modeling of Materials Across Scales: From First Principles Calculations to Mesoscale Physics, at USNCCM18, July 20–24, 2025, Chicago. We invite you to submit an abstract at this symposium. The abstract submission deadline is January 15, 2025. Please find the submission portal here:  https://usnccm18.usacm.org/abstract-submission        

We have several openings for PhD positions. The successful candidate will conduct original research in computational fluid dynamics with special focus on AI and multiphase flows. They will develop numerical methods to be run on high-performance computing platforms. The positions are in the Gomez Research Group (https://engineering.purdue.edu/gomez/) in the Department of Mechanical Engineering at Purdue.

Applications

We have an opening for a postdoc position. The successful candidate will have a PhD in Mechanical Engineering or a related field, excellent programming skills, and knowledge of computational mechanics and Large Language Models (LLMs). The positions is in the Gomez Research Group (https://engineering.purdue.edu/gomez/) in the Department of Mechanical Engineering at Purdue.

Applications

Fracture mechanics suddenly provides a step forward to stop climate change. The blogger has often pictured us humans walking on earth, asking ourselves how to get sufficient energy without burning fossil oil and destroying forests. Earth has a crust that is 30 to 50 km thick. Below it, the temperature is 1 to 6 thousand degrees Celsius. We are on the outside of a thin shell and inside is mostly melted rock, forming a sphere with a diameter that is close to 13000 km. For someone seeing this from another solar system, our behaviour must seem strange and pathetic. We have to look inward. 

Wrinkling - Theoretical Foundation, Experimental Characterization and Numerical Modeling

This course is aimed at graduate students, PhD candidates, and postdoctoral researchers in electronics/biomedical/mechanical/civil engineering, materials science, biophysics and applied mathematics. It is also valuable for senior scientists and engineers in academia and industry interested in the fundamental theoretical aspects of wrinkling phenomena, their numerical simulation and experimental characterization.

A scheme for treating the Second Law of thermodynamics as a constraint and accounting for the approximate nature of constitutive assumptions in continuum thermomechanics is discussed. An unconstrained, concave, variational principle is designed for solving the resulting mathematical problem. Cases when the Second Law becomes an over-constraint on the mechanical model, as well as when it serves as a necessary constraint, are discussed.

Postdoctoral positions are available in the department of Structural Engineering at the University of California, San Diego (UCSD) in Prof. Semnani’s research group. We are looking for highly motivated and talented individuals with a recent PhD degree in Civil and Environmental Engineering or Mechanical and Aerospace Engineering.

 The positions are in the areas of computational mechanics, machine learning, geomechanics, material characterization and modeling, and composite materials.

A list of necessary qualifications is below: