Post-doc position in Computational Design Optimization available at University of Sheffield, UK
Research Associate in Computational Design Optimization
University of Sheffield - Faculty of Engineering - Department of Civil and Structural Engineering
Research Associate in Computational Design Optimization
University of Sheffield - Faculty of Engineering - Department of Civil and Structural Engineering
Jessica McWilliams (jmcw [at] seas.upenn.edu), Wei-Hsi Chen (weicc [at] seas.upenn.edu), Cynthia Sung (crsung [at] seas.upenn.edu)
General Robotics, Automation, Sensing & Perception (GRASP) Laboratory, University of Pennsylvania, USA
The non-transforming intermetallic Ni3Ti phase generated in NiTi matrix by additive manufacturing was previously reported to create elastocaloric composites with a great coefficient of performance (COP) between 11 and 22 [Hou et al., Science 366 (6469) (2019) 1116–1121]. In this work, we use a fully thermomechanical coupled phase-field model to design microarchitectures with very high COP considering the effects of all the possible non-transforming intermetallics (Ni4Ti3, Ni3Ti, and Ti2Ni) in NiTi.
At the Helmholtz-Zentrum Hereon, we are looking for one PhD student (m/f/d) in the field of computational mechanics / phase-field modelling to describe microstructure evolution during a thermo-mechanical process within the ERC Consolidator Grant "Modelling Assisted Solid State Materials Development and Additive Manufacturing" (https://cordis.europa.eu/project/id/101001567/de). Application deadline is July 14th.
There is a PhD opening in the Mechanics of Soft Materials Lab (https://www.msm.seas.ucla.edu/) in the Department of Mechanical and Aerospace Engineering at the University of California, Los Angeles. The opening is to be filled in 2021 fall, 2022 winter or 2022 fall quarter. The successful candidate is expected to work on modeling, simulations, and experiments of soft materials.
Curvy imagers that can adjust their shape are of use in imaging applications that require low optical aberration and tunable focusing power. Existing curvy imagers are either flexible but not compatible with tunable focal surfaces, or stretchable but with low resolution and pixel fill factors. Here, we show that curvy and shape-adaptive imagers with high pixel fill factors can be created by transferring an array of ultrathin silicon optoelectronic pixels with a kirigami design onto curvy surfaces using conformal additive stamp printing.
Engineering living systems is a rapidly emerging discipline where the functional biohybrid robotics (or ‘Bio-bots’) are built by integrating of living cells with engineered scaffolds. Inspired by embryonic heart, we presented earlier the first example of a biohybrid valveless pump-bot, an impedance pump, capable of transporting fluids powered by engineered living muscle tissues. The pump consists of a soft tube attached to rigid boundaries at the ends, and a muscle ring that squeezes the tube cyclically at an off-center location. Cyclic contraction results in a net flow through the tube.