We are looking for a post-doctoral researcher to work 18 months on a US Air Force sponsored project focused on developing new image-based tests to identify stiffness and strength of adhesives at high strain rates. Some preliminary results can be found here. The deadline for application is August 4th 2020. The advert is available here.
in recent years the technique of freeze casting has undergone tremendous development. New techniques and novel nanoscale building blocks have given rise to porous materials with extraordinary properties. As an example, by spinning freeze cast fibre with aligned pores fabrics with unprecedented levels of thermal insulation could be produced. This
The relationships between surface roughness, contact pressure and contact resistance are studied in this work published three years ago.
It is imporant to distinguish between the different conduction mechanisms acting at contacts at different scales, in order to better understand how surface structure and surface chemistry can alter the behaviour of electrical contacts
The USACM is happy to announce a virtual seminar this week on Thursday, July 9th at 3pm Eastern. The title of the seminar is "Image- and Experiment-based Modeling of the Forgotten Right Side: Right Ventricle, Tricuspid Valve, and Venous Blood Clot". An abstract of the talk is available here:
https://unsacm.memberclicks.net/assets/docs/Rausch_2020.07.09_2pm.pdf
We have a number of seats available to anyone interested. We just ask attendees to register at this page:
Dear friends and colleagues,
We invite you to submit a presentation only abstract to Symposium on Multifunctional Intelligent Materials and Systems. This symposium is part of 2020 ASME International Mechanical Engineering Congress & Exposition, November 15-19, 2020 Oregon Convention Center, Portland, OR.
Design of robust superhydraphobic surfaces, Dehui Wang, Zuankai Wang, Robin H.A. Ras, Xu Deng, et al., Nature, 2020
Superhydrophobic surfaces have promising applications in various medical and engineering applications; however, these surfaces, either via physical and/or chemical methods, suffer from one major flaw- extremely vulnerable to mechanical damage, so lose superhydrophobicity easily in practice.
Impact-resistant nacre-like transparent materials, Yin, Hannard, Barthelat, Science, 2019
Novelty/impact/significance:
Propose and fabricate nacre-inspired glass panels (50x50x3) that possess large-scale tablet sliding toughening mechanism, is 2-3 times more impact resistant than conventional laminated and tempered glass, and maintains transparency, high strength/stiffness.
The method (laser engraving and lamination) produces large size with high order and periodicity, and is inexpensive and scalable.
We are currently investigating the impact resistance of multilayers using molecular dynamics. This project showed us that modeling material interfaces could be challenging even for someone with a background in atomic simulations. Therefore, we thought of sharing some useful information and the LAMMPS input files to model the aluminum-polyurethane interface (shown above). Please see here: https://github.com/nuwan-d/polymer_metal_interface
