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WHAT |
Five-day short course on the fundamentals of continuum, atomistic and multiscale modeling of materials. |
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WHO |
Prof. Ellad B. Tadmor (U. Minnesota, USA) and Prof. Ronald E. Miller (Carleton University, Canada). |
Date: Wednesday, June 10, 2015
Time: 1:00 - 6:00 pm
Location: Amphithéâtre Accueil du CEA Grenoble (Entrée 1 / Bâtiment A2 / Pièce 205) - Pôlygone Scientifique - 17, rue des Martyrs – GRENOBLE
Dear all,
Polymers absorb moisture due to their hydrophilicity. Absorption of moisture changes the functional, mechanical and chemical properties of the polymer. Since polymer based materials are being increasingly used for structural applications, its only fitting to investigate how moisture absorption translates to mechanical property change. This experimental study investigated the effect of moisture absorption on the mechanical properties of epoxy polymers and their clay nanocomposites. Previous research studies reported that the high aspect ratio of clay slowed down the absorption rate.
Applications are invited for a Postdoctoral Fellow in the Department of Mechanical Engineering at Northwestern University. The candidate will interact closely with personnel at the start-up company iNfinitesimal, LLC and collaborators at the Northwestern University Feinberg School of Medicine. The position will involve research at the intersection of engineering and biology with an emphasis on development of nano and micro technologies for biological applications.
Desired Qualifications:
Applications are invited for a postdoctoral position within the Micro and Nano Mechanics Laboratory in the Department of Mechanical Engineering at Northwestern University. The candidate will perform research in the area of nanomechanics of high-performance materials such as 2D materials, nanowires, and biomaterials. The candidate will be expected to contribute to a vibrant multidisciplinary research group and be able to work in close collaboration with chemists and theoreticians.
Requirements:
The paper presents a systematic study of dispersive waves in an elastic chiral lattice. Chirality is introduced through gyroscopes embedded into the junctions of a doubly periodic lattice. Bloch-Floquet waves are assumed to satisfy the quasi-periodicity conditions on the elementary cell.
The effects of the material structure on the pull-in instability of nano-actuated beams made of nanocrystalline silicon (Nc-Si) and subjected to a distributed electrostatic force are investigated. Nc-Si is represented as a multi-phase material composed of nano-sized grains, nano voids, and an amorphous-like interface to consider the effects of the interface, grain size, porosity, and the inhomogeneities surface energies on the elastic properties of the composite material.
The modeling and performance of mechanical resonators used for mass detection of bio-cells, nanocrystalline materials characterization, and disease diagnosis of human immune-viruses (HIVs) are investigated. To simulate the real behavior of these mechanical resonators, a novel distributed-parameter model based on Euler-Bernoulli beam theory is developed. This model is equipped with a micromechanical model and an atomic lattice model to capture the inhomogeneity nature of the material microstructure.
