iMechanica

Topic

Machine learning-based approaches for modeling and numerical simulation of advanced materials.

Preferred background

Recently, there has been a growing interest in investigating the multi-functional properties of novel types of metamaterials, metastructures, and metacomposites based on triply periodic minimal surfaces (TPMS). TPMS have been discovered more than 160 years ago and thanks to additive manufacturing (3D printing) they become reality only recently and opend the doors for several applications.

How to provide a structure with a force lying on a fixed line?
We provide the answer to this question in our paper: Bigoni and Misseroni (2019) Structures loaded with a force acting along a fixed straight line, or the “Reut’s column problem”.
Journal of the Mechanics and Physics of Solids.
Enjoy watching our video below (would you have trouble playing video on YouTube, click here to watch it).

A PhD student is sought to perform research on systems engineering theory relying on the mathematics of probability theory, decision theory, game theory and social choice theory.  The student will be supported under an NSF grant in the Mechanical Engineering department of George Mason University and work with Dr. George Hazelrigg.  If interested, please contact Dr. Hazelrigg at ghazelri@gmu.edu.

https://www.mdpi.com/1099-4300/21/12/1188

How a mass falls when attached to a flexible element with varying length?
We provide the answer to this question in our paper: Armanini, Dal Corso, Misseroni, Bigoni (2019) Configurational forces and nonlinear structural dynamics.
Journal of the Mechanics and Physics of Solids.
Enjoy watching our video below (would you have trouble playing video on YouTube, click here to watch it).

May a catastrophe machine be realized through an elastic continuous element?
We provide a positive answer to this question in our paper: Cazzolli, Misseroni, Dal Corso. Elastica catastrophe machine: theory, design and experiments. Journal of the Mechanics and Physics of Solids.

Enjoy watching our videos below (would you have trouble playing videos on YouTube, click here to watch them).

Mechanical mismatches between implanted electronics and biological tissues can lead to inaccurate readings and long-term tissue damage. Here, we show that functionalized multi-walled carbon nanotubes twisted into helical fibre bundles that mimic the hierarchical structure of muscle can monitor multiple disease biomarkers in vivo. The flexible fibre bundles are injectable, have a low bending stiffness and display ultralow stress under compression.

The HetSys team are recruiting its second cohort of enthusiastic students from across the physical sciences who enjoy using their mathematical skills and thinking flexibly to solve complex problems to join our new EPSRC Centre for Doctoral Training in Modelling of Heterogeneous Systems at the University of Warwick, UK. Our exciting range of PhD projects can be found on our webpage.

We are looking for an Academic Associate to join the Department of Engineering.  This post is part-time and in addition you will be required to register for a PhD part-time for the duration of the 5-year post. Part-time PhD fees will be paid by the Department for 5 years and the PhD will be in the area of 3D printing of Smart Shape Memory Materials for Advanced Sensors and Actuators.

PhD Title: 3D printing of Smart Shape Memory Materials for Advanced Sensors and Actuators

Measuring forming limit diagrams (FLDs) is a time consuming and expensive process. Machine learning (ML) methods are a promising route to predict FLD of aluminium alloys. In the present work, we developed a machine learning (ML) based tool to establish the relationships between alloy composition / thermomechanical processing route to the material's FLD.

Shock attenuation is of prime concerns when bodily organs are involved, such as traumatic brain injury. Most armor systems nowadays are aimed at defeating the threat, such as breaking a projectile using hard ceramic armor. Yet, such solutions do not mitigate the initial acceleration (elastic) wave that is responsible for internal organ damage, although no penetration occurred.

Dear iMechanicians,

Please find below a paper, co-authored with Ivan Cuesta and Norman Fleck, on the mode II fracture of elastic-plastic sandwich layers. The paper is part of the special issue in the Journal of Applied Mechanics dedicated to John Hutchinson's 80th anniversary and the Century Fracture Mechanics Summit.

Hi

I am sharing this position on behalf of Prof. Tim Dodwell, University of Exeter:

The position is a 2-year postdoctoral research fellowship within the Institute of Data Science and Artificial Intelligence at the University of Exeter. The role will work with Turing AI Fellow Prof Tim Dodwell .

"Soft magnetoactive laminates: large deformations, transverse elastic waves and band gaps tunability by a magnetic field"  by  N. Karami Mohammadi et al (2019) has been published in November Special Issue in Journal of Applied Mechanics.

This paper is part of my group and co-author work on the topic of Soft Magneto-Active Composites:

Abstract: Even for relatively simple thin shell morphologies, many different buckled configurations can be stable simultaneously. Which state is observed in practice is highly sensitive to both environmental perturbations and shell imperfections. The complexity and unpredictability of postbuckling responses has therefore raised great challenges to emerging technologies exploiting buckling transitions.

The M&S Lab in Department of Mechanical Engineering, Kyung Hee University (South Korea) is recruiting highly motivated a postdoctoral researcher (starting 2020 summer) and a Ph.D student (starting 2020 September). The candidate is expected to be highly self-motivated, independent, and high-level coding skill (For examples, Fortran, JAVA, C/C++, Python, matlab, etc). Excellent publication record additionally requires to the postdoctoral research position. High performance computation skills such as parallel and/or domain decomposition are good aspects in the positions.

Dear Colleague,

It is well known that the straight configuration of a flexible vertical riser conveying fluid destabilizes in a divergence-type buckling instability once the velocity of the transporting fluid exceeds a critical speed. To compute the critical velocity, the dynamics of small amplitude perturbations to the straight configuration are computed. If the perturbations are sufficiently small and the transport speed is above a critical value, then the instability of the vertical riser can be detected.

Dear Colleague,

I'm delighted to inform you that the Department of Mechanical Engineering University of California, Berkeley, seeks candidates for a tenure-track faculty position at the Assistant Professor level, starting July 1, 2020 or on a mutually agreed date thereafter. The department seeks candidates with expertise in one or more of the following: Fluid Mechanics; Energy Science and Technology; Design and Manufacturing; and Control and Robotics.

The research group of Multiscale Materials Modeling at IMDEA Materials is seeking a 

PhD candidate - Multiscale mechanical modeling of metals  

(Ref:  MOAMMM_JS-RA01)

By Yuzhen Chen and Lihua Jin

Honking a bicycle as a non-holonomic Fermi-like acceleration (Advert Reference: SF19/EE/MPEE/KIRILLOV)

The group in “Mechanics of soft and living interfaces” at UPC in Barcelona (also affiliated to IBEC and CIMNE) lead by Prof. Marino Arroyo seeks for candidates with a background in theoretical/computational mechanics, scientific computing, applied mathematics or biophysics to work in an interdisciplinary and collabor

Multiple Ph.D. students are being sought to fill openings in the Predictive Computational Engineering (PCE) Lab in the Department of Mechanical and Aerospace Engineering. PCE Lab concerns with multidisciplinary research at the intersect of multiscale modeling of materials, physics-based machine learning, and scientific computing.