Blog posts

This paper, in press in Acta Biomaterialia presents a simplifiwed model based on a micro to macro description of the bone-implant interface, and the evolution of its stiffnmess at the local and the global scales as healing progresses. The paper is temporarily available at:

The Multiscale Mechanics and Multiphysics of Materials Lab (http://m4lab.unibs.it) at the School of Engineering at the University of Brescia, Italy announces a PhD fellowship on the subject of Modeling and simulations for next generation lithium-ion cells. The fellowship is fully funded by the m4lab in collaboration with the Austrian Research Center Virtual Vehicles (https://www.v2c2.at) and will last three years.

The postdoc fellow will work in Hopkins Extreme Materials Institute (HEMI), a division of Johns Hopkins University.

Duties

• Conduct underwater impulsive loading tests on a lung simulant structure (a sphere filled with porous medium)

• Develop numerical models to simulate the lung simulant structural response

• Write technical papers and research proposals

• Guide the graduate students in the group

Requirements

• PhD in Mechanical/ Biomedical Engineering or other related areas

Two Postdoctoral Positions, 3-year full-time contract for each post, in 1) Computational Mechanics and 2) Instrumentation at Heriot-Watt University (Edinburgh, United Kingdom)

A Postdoctoral position is available immediately at CEMEF Mines ParisTech, in the French Riviera. The aim of the project, in collaboration with Safran Aircraft Engines (SAE), is to model the fracture of glued Titanium/Composite assemblies at different scales. See the enclosed document for details.

Interested applicants can send a resume to :

The Mueller Lab invites applications for two fully-funded Postdoctoral Fellow positions at the intersection of Additive Manufacturing, Mechanical Metamaterials, and Computational Design. Of specific interest are candidates with a background in direct-ink writing (DIW), dielectric-elastomer actuators (DEA), and computational design (including optimization and machine learning). Applicants must hold a PhD in Mechanical Engineering, Materials Science, Computer Engineering, Applied Mathematics, or a related discipline.

We report phenomenal yield strengths—up to one-fourth of the theoretical strength of silver—recorded in microcompression testing of initially dislocation-free silver micro- and nanocubes synthesized from a multistep seed-growth process. These high strengths and the massive strain bursts that occur upon yield are results of the initially dislocation-free single-crystal structure of the pristine samples that yield through spontaneous nucleation of dislocations.

We introduce a class of parity-time symmetric elastodynamic metamaterials (Ed-MetaMater) whose Hermitian counterpart exhibits unfolding (fractal) spectral symmetries. Our study reveals a scale-free formation of exceptional points in those Ed-MetaMaters whose density is dictated by the fractal dimension of their Hermitian spectra.