The Fracture Mechanics and Structural Integrity Research Laboratory (NAMEF) of the Polytechnic School of Engineering at the University of São Paulo (EPUSP) has openings for 3-year PhD positions (which may be extended to an additional year) to conduct research in the areas of fracture mechanics, fatigue and computational modeling of materials starting from August/2019 or September/2019.
Can the mere crumpling of a paper produce electricity? An inhomogeneous strain can induce electrical response in all dielectrics and not just piezoelectric materials. This phenomenon of flexoelectricity is rather modest unless unusually large strain gradients are present. In this paper, we analyze the crumpling of thin elastic sheets and establish scaling laws for their electromechanical behavior to prove that an extremely strong flexoelectric response is achieved at submicron length scales.
The new book "Modeling and Simulation of Tribological Problems in Technology" (CISM book series, Springer) has been published: https://link.springer.com/book/10.1007/978-3-030-20377-1
Editors: Paggi, Marco (IMT School for Advanced Studies Lucca, Italy), Hills, David (University of Oxford)
Hi all,
Just wanted to share that the first issue of Matter was released last week. Matter is a new materials science journal from Cell Press. Our goal is to be a high impact offering, on par with Nature Materials. Check out our first issue here:
I attach a Letter I sent to the Editor of a tribology journal, concerning adhesion of rough surfaces.
I contend that some "criteria" that have been proposed based on extrapolation of numerical results are due to the limitations in present numerical sophisticated rough contact simulations, which only span at most 3 orders of magnitude of wavelengths, so typically people simulate from nanometer to micrometer scale.
Hello,
More detailed results on the void growth in single and dual phase titanium alloys.
https://www.sciencedirect.com/science/article/pii/S0749641919300105?via%3Dihub
Thanks,
Amir
A recent study reviews achievements made in the determination of the size‐dependent mechanical properties of nanowires. Covering both measurement techniques and computational approaches, data reported in the literature are summarized for a variety of nanowires.
