We are looking for exceptional PhD candidates who have good publication track record and the passion for scientific discoveries in the realm of Materials Innovation & Additive Manufacturing. Our current efforts focus on multifunctional composites, architected & tailored materials, biomaterials, materials energy storage & distribution, materials for sensing & actuation and AI and ML for materials design & additive manufacturing. Potential candidates are advised to conta
Interested in using imaging data and computer-aided engineering (CAE) for weight reduction? This webinar on February 8th and 10th looks at studying fiber orientation in composite materials to improve workflows prior to costly production.
We are hosting a new Research Topic "Fingerpad Contact Mechanics and Friction under Electroadhesion" in Frontiers in Mechanical Engineering, Tribology section. It welcomes contributions in adhesion mechanisms, electroadhesion, friction and vibrations, viscoelastic hysteresis, adhesive instabilities, and rough contact.
In the following doi, I share with the community our new tech brief ("selection methodology of femoral stems according to the cross section and the maximum stress") about design of femoral stems, published in the journal of biomechanical engineering of ASME.
Our latest article “Quantum and classical molecular dynamics simulations of shocked polyurea and polyurethane” is available freely for 50 days from this URL: https://authors.elsevier.com/a/1eJem3In-urdzV
I invite you to read our recent paper on Origins of mechanical preconditioning in hierarchical nanofibrous materials, published in Extreme Mechanics Letters.
I invite you to read our recent paper on the Extreme Dynamic Performance of Nanofiber Mats under Supersonic Impacts Mediated by Interfacial Hydrogen Bonds published on ACS Nano.
The submersion of a polymer network with a high density of hydrogen bond based cross-links in an aqueous bath results in the formation of a rubber-like hydrogel. The cross-links, which connect chains and maintain the structure of the network, can dissociate as a result of two main factors: (1) the interactions between the hydrogen bonds and the surrounding water molecules and (2) the forces that are exerted on the cross-link from the interconnected chains.
EML Webinar (Season 2) on 16 December 2021 will be given by Nanshu Luonsoft electronics for digitizing human body and human-centered robotics. Discussion leader: John A. Rogers, Northwestern University
Time: 9:30 am Boston, 2:30 pm London, 10:30 pm Beijing on 16 December 2021
Simple exact solutions are known for the indentation problem of a viscoelastic halfspace by a rigid sphere only as long as the contact area is growing. We consider instead a more general cyclic repeated indentation with a pulsating load with a period of zero load. We show that a combination of exact with empirical relaxation solutions coming from simple uniaxial cases is sufficiently accurate to estimate the energy dissipated per cycle, which we report for the standard ”3-elements” solid and periodic half-sine loading for various parameters.
This paper describes a numerical scheme that implements reduced order modeling of transient heat transfer problems by enhancing a standard fifinite element code, ABAQUS, and integrating it with proper orthogonal decomposition (POD).
Optimizing toughening efficiency of nanofibrillated rubber embedded in thermoplastic polymers has always been a challenge. In our work published in Nanoscale journal, by a combined MD-QM method, we demonstrate the roles of interface & interfiber interactions on the toughness and failure mechanisms of rubber-toughened polypropylene nanocomposites.
We invite you to see the preprint of our new paper "Accretion and Ablation in Deformable Solids with an Eulerian Description: Examples using the Method of Characteristics" which will appear in Mathematics and Mechanics of Solids. Recent work has proposed an Eulerian approach to the surface growth problem, enabling the side-stepping of the issue of constructing the reference configuration. However, this raises the complementary challenge of determining the stress response of the solid. To resolve this, the approach introduced the elastic deformation as an additional kinematic descriptor of the added material, and its evolution has been shown to be governed by a transport equation. Here, we applied the method of characteristics to solve concrete simplified problems motivated by surface growth in biomechanics and manufacturing (https://journals.sagepub.com/doi/10.1177/10812865211054573)
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