We propose a new layered configuration of isotropic tubes that twists upon inflation, based on the concept of geometric incompatibilities. For more details click "Read more" below. The full paper can be found at: https://doi.org/10.1115/1.4047980.
Hello Dear All,
Thanks to Extreme Mechanics Letter, a new discusion of localized plastic deformation was published there. Three outlines of our work are:
1. A new dislocation based consitutive model is built. It has a concise mathematical struture.
2. Heat generated by plastic energy can be calculated by a mechanical version of Joule's law.
3. Shear band and neck locations can be predicted by the mathematical model.
We calculate bending moduli along the principal directions for forty-four select atomic monolayers using ab initio density functional theory (DFT). Specifically, considering representative materials from each of Groups IV, III–V, V monolayers, Group IV monochalcogenides, transition metal trichalcogenides, transition metal dichalcogenides and Group III monochalcogenides, we utilize the recently developed Cyclic DFT method to calculate the bending moduli in the practically relevant but previously intractable low-curvature limit.
Structural orientation and anisotropy in biological materials: Functional designs and mechanics, Liu, Zhang, Ritchie, Advanced Functional Materials, 2020
Novelty/impact/significance:
Based on the fast expanding knowledge of biological materials, this review presents a new perspective looking into the design of nature: structural orientation (predetermined) and reorientation (in-situ change with loading) for diverse favorable mechanical functions.
In the past two decades, acoustic metamaterials have garnered much attention owing to their unique functional characteristics, which are difficult to find in naturally available materials. The acoustic metamaterials have demonstrated excellent acoustical characteristics that paved a new pathway for researchers to develop effective solutions for a wide variety of multifunctional applications, such as low-frequency sound attenuation, sound wave manipulation, energy harvesting, acoustic focusing, acoustic cloaking, biomedical acoustics, and topological acoustics.
EML Webinar on 12 August 2020 will be given by Professor Ellen Kuhl, Standard University via Zoom meeting. Discussion leader: Professor Pradeep Sharma, University of Houston.
Title: Data-driven modeling of COVID-19—Lessons learned
Time: 7 am California, 10 am Boston, 3 pm London, 10 pm Beijing on 12 August 2020
Dear Colleague,
Our latest work on the dynamics of rods contacting rigid surfaces has just appeared:
N. N. Goldberg and O. M. O'Reilly, On contact point motion in the vibration of elastic rods, Journal of Sound and Vibration, 2020.
Anomalous scaling law of strength and toughness of cellulose nanopaper, Zhu, et al., Li, PNAS, 2015
Novelty/impact/significance:
A cellulose-based nanopaper that shows a scaling law of a simultaneous, substantial increase of strength and toughness as the cellulose fiber sizes decrease from 27 µm to 11 nm is developed. The mechanism includes the reduced intrinsic defect size and, more importantly, the repeated (re)forming of hydrogen bonding, a design/optimization strategy applicable to wide materials systems.
The second deadline to apply for a PhD position in Mathematical Analysis, Modelling and Applications at SISSA (Scuola Internazionale Superiore di Studi Avanzati - www.sissa.it) is August 20, 2020 at noon (Rome time). There are 5 PhD grants available.
Dear iMechanica researchers,
I'd like to share an opinion paper that was written by Rui Huang, Kenneth Liechti, Nanshu Lu, and I for Current Opinion in Solid State & Materials Science. The aim is to discuss the mechanics research on 2D material interfaces in terms of recent developments and appeared challenges and opportunities. Here is the link; Below, I also attached a copy of the manuscript and pasted the Abstract.
