research

This work deals with the small oscillations of two circular cylinders immersed in a viscous stagnant fluid. A new theoretical approach based on an Helmholtz expansion and a bipolar coordinate system is presented to estimate the fluid forces acting on the two bodies. We show that these forces are linear combinations of the cylinder accelerations and velocities, through viscous fluid added coefficients. To assess the validity of this theory, we consider the case of two equal size cylinders, one of them being stationary while the other one is forced sinusoidally.

Spider silk is an incredible material!
Check out our new paper at Physical Review Letters:

Liquid Nanofoam: Past, Present and Future

Mingzhe Li and Weiyi Lu

Department of Civil and Environmental Engineering, Michigan State University

1. Introduction

The motion of filament-like structures in fluid media has been a topic of interest since long. In this regard, a well known slender body theory exists wherein the fluid flow is assumed to be Stokesian while the filament is modeled as a Kirchhoff rod which can bend and twist but remains inextensible and unshearable. In this work, we relax the inextensibility and unshearability constraints on filaments, i.e., the filament is modeled as a special Cosserat rod.

Exceptionally high saturation magnetisation in Eu-doped magnetite stabilised by spin–orbit interaction

Unusual ferrimagnetic ground state in rhenium ferrite

Abstract

https://doi.org/10.1140/epjb/s10051-021-00272-y

Abstract 

Abhishek Arora, Rajat Arora, Amit Acharya

http://dx.doi.org/10.1063/5.0080849

Abstract

A highly stretched hyperelastic shell exhibits a coupling behavior of local wrinkling and global bending within the stability boundary, and curvature resists and can even suppress surface wrinkles beyond a critical threshold. Here, we report a novel phenomenon that smooth surface maintains upon stretching a soft shell, while wrinkles emerge upon unloading, which implies a nonlinear interplay between curvature and Mullins (stress softening and residual strain) effects in the entire loading-unloading cycle.

The journal- EC Emergency Medicine and Critical Care   /  ECRONICON

 EC Emergency Medicine and Critical Care

Stimulus activated structures that deform from a reference to target configurations are used in various fields such as soft robotics, smart materials, and actuators.  In this work we introduce a framework that captures the non-linear response of multi-layer polymeric beams subjected to thermo-mechanical loading. We show that the exploitation of the glass transition temperature can lead to a wide variety of interesting responses.

Weblink for job advertisement below. Apply through the Baylor Career website as advised. Feel free to reach out to me for informal enquiries - Dr. Singh (abhen_singh@baylor.edu)

https://ejof.fa.us2.oraclecloud.com/hcmUI/CandidateExperience/en/sites/C...

cdmHUB invites you to attend the Global Composites Experts Webinar Series. 

Title: Composite Materials: Where We are and Where to Go (Mechanical and Electrical Properties of Polymer Composites)

Speaker:  Dr. Karl Schulte

Time: 2/24, 11AM-12PM EST.

Please go to https://bit.ly/3soG8dk to register for this webinar.

International Journal on Obstetrics and Gynecology (IJOG)

Introduction: Gynecology is a field of study that deals with the Women’s Health, Female Reproductive System (Vagina, Uterus, Ovaries). Whereas Obstetrics mostly deals with Childbirth, Pregnancy and Postpartum Period. Generally, in medical specialty Gynecology and Obstetrics are combined. 

Following the approach of Griffith, Sneddon and Muskhelishvili calculated the pressure of tear propagation in elastic media. Gent and Lewandowski collected these works and using Hencky's approximation of membrane deformation, introduced a collection of relationships on the debonding of films from substrates by pressure (left panel).

The James McCune Smith Scholarships will fund Black UK students to undertake PhD research at the University, and will provide an enhanced experience through external mentors, placements, leadership training, community-building activities and networking opportunities. Further details can be found here:

Shape-changing materials with precisely programmable configurations, each having its own functional regime, provide a wide range of applications in engineering and biomedical fields. Polymers with dynamic reversible covalent/non-covalent bonding feature the potential of having remarkable plasticity, which endows them with the capability of undergoing significant and sophisticated shape changes. Here we report a facile method to build an interpenetrating network (IPN) structure with plastic deformation and shape memory properties.

Abstract

The James Watt School of Engineering, University of Glasgow, is dedicated to supporting greater diversity in engineering.  To enable this mission, the Mary Gibb Dunlop Scholarships have recently been established to support exceptional female applicants (and those identifying as female) to undertake postgraduate research within the James Watt School of Engineering. Applications for full or part-time doctoral research within the school are welcomed.

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.

Register here: https://www.shimadzu.com/an/news-events/campaign/automotive/weight_reduc...