Caractérisation expérimentale de la rupture de matériaux imprimés en 3D en lien avec la microstructure

Le projet FracAddi (2022-26) dans lequel s’inscrit cet appel à candidature, vise à étudier la propagation de fissures dans des matériaux anisotropes et hétérogènes, d’un point de vue à la fois expérimental et théorique.

Responsable/contact : Véronique LAZARUS (veronique.lazarus@ensta-paris.fr)

https://perso.ensta-paris.fr/~lazarus/Telecharger/CIEDS45months.pdf

Ci-joint, une annonce de post-doc pour travailler sur la physique de l’embolie dans des réseaux hydrauliques de plantes synthétiques, à l’Institut de Physique de Nice, dans le cadre de l’ANR PHYSAP.

Enclosed an announcement of post-doc at INPHYNI in Nice, in the framework of the ANR PHYSAP on the physics of embolism in synthetic hydraulic networks of plants.

Dear colleague,

As part of my Canada Research Chair, I am hiring at least one more postdoc to work on topics related to modelling, analysis, and computational aspects of variational phase-field models of fracture. The ideal candidate would have some basic knowledge of solid mechanics, PDE, and numerical analysis but candidates with primary background in solid mechanics and materials science will also be considered.

The initial appointment will be for two years, and I am flexible on the start date, but would rather delay past the end of 2023.

Best regards,
Blaise Bourdin

— 
Canada Research Chair in Mathematical and Computational Aspects of Solid Mechanics (Tier 1)
Professor, Department of Mathematics & Statistics
Hamilton Hall room 409A, McMaster University
1280 Main Street West, Hamilton, Ontario L8S 4K1, Canada 
https://www.math.mcmaster.ca/bourdin | +1 (905) 525 9140 ext. 27243

Superhydrophobic surfaces (SHS) are bioinspired surfaces (from lotus leaves) able to repel
water through the synergy of microroughness and hydrophobicity. When immersed in water,
such surfaces can trap an air layer inside the microstructure, a layer called plastron, opening
the avenue for drag reduction application thanks to the significant slip length water
experiences on the plastron. However, this air layer can become unstable under pressure
fluctuations or in turbulent flow conditions. Indeed, under strong enough mechanical stress,
the microstructure can be flooded, i.e. superhydrophobicity breaks down, and the drag
reduction properties are lost.

The aim of this postdoc is to elucidate the dynamical conditions under which a plastron
becomes unstable. This study is part of a bigger project (ANR IDEFHYX) which aims at
understanding the coupling between turbulent flow and plastron dynamic.

We are looking for an experimentalist with a fluid mechanics background (capillarity,
instability, waves,…). The postdoc will build the different setups which require experimental
skills in high speed imaging, light interferometry and electronic equipment.

Dear all,

we open one year position (with possible prolongation) at Laboratoire de Mécanique des Solides, Ecole Polytechnique Palaiseau.

The job is concerned with kinematic analysis by digital image correlation of X-ray micro-tomography data obtained during in-situ triaxial testing of porous carbonate rocks. The aims are to charcterize localization, pore colapse and formation of compaction bands, for the purpose of underground storage and more particularly CO2 sequestration

The position starts as soon as possible 2023, is financed by the Interdisciplinary Center E4C (Energy for Clamate) and relates to CO2 geological sequestration.

Please, find details bellow:

Measurements of 3D full mechanical fields in porous carbonate rocks by digital image correlation and application to for geological sequestration of CO₂

The general topic is concerned with energy transition and more particularly with underground sequestration of carbon dioxide in porous carbonate reservoir rocks.

Carbonate reservoir rocks present pronounced multiscale microstructural heterogeneities, which complicates the modeling of their short term hydro-mechanical behavior and long term integrity.

To understand the mechanical implications of these microstructural heterogeneities we use X-ray microcomputed tomography (Lab and Synchrotron radiation) and DVC (digital volume correlation), aiming to characterize the in situ development of localization patterns and compaction bands in porous carbonates experiencing triaxial loadings.

Persons to contact for further details:

Alexandre Dimanov (alexandre.dimanov@polytechnique.edu) and Michel Bornert (michel.bornert@enpc.fr)

Best regards,

Alexandre Dimanov

Directeur de Recherche

LMS, UMR7649

Ecole Polytechnique, Palaiseau

I have an opening for a Postdoc position in Biological Physics in my group at the Max Planck Institute for Dynamics and Self-Organization (MPIDS) in Göttingen.

Project: Role of viscoelasticity in the dynamics of droplets inside cells or related topics
Starting date: Flexible (position is for 2 years initially, with possibility for extension)
Deadline: March 1st, 2023

Best wishes,
David Zwicker

Dear all,

We have two openings for postdocs in microbial oceanography (see link or attachment). 

I would appreciate your help in bringing this to the attention of any potential candidates. https://jobs.ethz.ch/job/view/JOPG_ethz_5Oz1OqdcQWelD6YsMq

All the best!

Roman

 

Roman Stocker    
Professor, ETH Zurich
http://stockerlab.ethz.ch/

We invite applications for a 1-year postdoc position available at CentraleSupélec (Université Paris-Saclay, France), with a flexible start date around March 2023.This is an experimental project in collaboration with Air Liquide R&D that aims at improving the geometry of the structured packings used in cryogenic distillation. See pdf attached for more information.

We are looking for a highly motivated candidate with a solid background in fluid mechanics, mechanics or physics.

Feel free to contact Hervé Duval (herve.duval@centralesupelec.fr) or Mikaël Wattiau (mikael.wattiau@airliquide.com) with any question.

The Physics Department at Emory University in Atlanta, GA, USA invites applications for a postdoctoral position in experimental soft matter and biological physics. The candidate will have the opportunity to work on a newly funded, highly interdisciplinary project centered on how bacteria and other microbes survive, grow, and interact in the air. The research is motivated by overwhelming evidence that airborne microbes critically impact everyday life, e.g., rainfall, disease spread, land fertilization, and food production. The candidate will help build and optimize acoustic levitators to grow bacteria on isolated particles in analog atmospheric conditions in the laboratory. A major goal of this research is to develop a new way to culture bacteria in the air and use this cutting-edge technology to understand the physiology, metabolism, ecology, and evolution of airborne microbes. The candidate will also be joining a collaborative research team, with physicists and microbiologists at Emory University, and Earth scientists at the University of Oregon.

Candidates are requested to send their curriculum vitae including a list of publications to Justin Burton at justin.c.burton@emory.edu and arrange to have 3 recommendation letters sent to the same address. Review of the applications will begin immediately, until the position is filled. The starting date for the position is flexible, from late Spring 2023 – early Fall 2023. Emory is an Affirmative Action/Equal Opportunity Employer. Therefore, women and minorities are especially encouraged to apply. For more information about employment at Emory, please visit https://www.hr.emory.edu/careers/.

Justin C. Burton
https://www.jcburtonlab.com/