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Journal Club for September 2020: The Biofilm Matrix - A Living Engineering Material

The Biofilm Matrix - A Living Engineering Material

Chenxi Zhai, Haoyuan Shi, Tianjiao Li, Liming Zhao, Jingjie Yeo

J2 Lab for Engineering Living Materials, Sibley School of Mechanical and Aerospace Engineering, Cornell University

Introduction

Teng Li's picture

EML Webinar

  • Mark your calendar: every Wednesday at 10 am Boston, 3 pm London, 10 pm Beijing.
  • Join live webinars in two ways: Zoom (for attending the lecture and participating in the discussion) or YouTube Live Stream.
  • Watch videos of past EML Webinars on YouTube or Weibo.

Apple Hiring Hardware FEA Engineer, Internship Position

 

I am from Apple Hardware Engineering Team, responsible for FEA simulation and related material testing. Our team has one internship position open, starting by the end of 2020. See the attached job description for details. We prefer last year PhD Student.

  

If you are interested, please send your resume to apperto0099@gmail.com. Thank you. 

 

Requirements:

 

Marieme Imene EL GHEZAL's picture

Integrated Computational Materials Engineering (ICME) conference

The ICME Conference 2020, a HxGN LIVE event is a 3-days intensive online conference on October 6-8, 2020 for executives, R&D, manufacturing professionals, engineers, and designers to learn, explore and share about Integrated Computational Materials Engineering (ICME) to enable companies to blur the boundaries between manufacturing, materials and part performance for the optimal design of innovative quality products.

Qihan Liu's picture

Fully funded PhD position, Spring/Fall 2021, University of Pittsburgh

The Labortory of Soft Materials Mechanics and Manufacturing (https://www.engineering.pitt.edu/LASM3/) is recruiting PhD candidates starting either on Spring or Fall 2021. Students with expertise in the following areas are especially valued:

1. Thermodynamics of solids

2. Polymer synthesis

3. Developing customer experimental setups

Arash_Yavari's picture

The Anelastic Ericksen Problem: Universal Deformations and Universal Eigenstrains in Incompressible Nonlinear Anelasticity

Ericksen's problem consists of determining all equilibrium deformations that can be sustained solely by the application of boundary tractions for an arbitrary incompressible isotropic hyperelastic material whose stress-free configuration is geometrically flat. We generalize this by first, using a geometric formulation of this problem to show that all the known universal solutions are symmetric with respect to Lie subgroups of the special Euclidean group. Second, we extend this problem to its anelastic version, where the stress-free configuration of the body is a Riemannian manifold.

Roberto Ballarini's picture

Scholarship in mechanics

A few days ago I had a good discussion with a dear colleague on the topic of the current state of scholarship in mechanics and the education of the new generation of mechanicians. During the past few decades most mechanics researchers have limited their activities to the writing of papers and research proposals. This because the “reward system” places little value to the authoring of monographs and textbooks.

Fan Xu's picture

Intricate evolutions of multiple-period post-buckling patterns in bilayers

Surface instability of compliant film/substrate bilayers has raised considerable interests due to its broad applications such as wrinkle-driven surface renewal and antifouling, shape-morphing for camouflaging skins, and micro/nano-scale surface patterning control. However, it is still a challenge to precisely predict and continuously trace secondary bifurcation transitions in the nonlinear post-buckling region. Here, we develop lattice models to precisely capture the nonlinear morphology evolution with multiple mode transitions that occur in the film/substrate systems.

tehrani's picture

postdoc position in experimental mechanics of composites at the University of Texas at Austin

Immediate #postdoc position in experimental mechanics of #composites at UT-Austin Mechanical Engineering. The applicant must currently be in the U.S. due to the COVID-19 international travel restrictions. Send your CV to tehrani@utexas.edu

Khalid Jawed's picture

Postdoctoral Position at UCLA in applied math./mechanics/computational science/ML

We have an open postdoctoral position at the University of California, Los Angeles.

Please follow this link for details: https://tinyurl.com/UCLA-Postdoc

Arash_Yavari's picture

Transformation Cloaking in Elastic Plates

In this paper we formulate the problem of elastodynamic transformation cloaking for Kirchhoff-Love plates and elastic plates with both in-plane and out-of-plane displacements. A cloaking transformation maps the boundary-value problem of an isotropic and homogeneous elastic plate (virtual problem) to that of an anisotropic and inhomogeneous elastic plate with a hole surrounded by a cloak that is to be designed (physical problem). For Kirchhoff-Love plates, the governing equation of the virtual plate is transformed to that of the physical plate up to an unknown scalar field.

Postdoctoral Position at Oregon State University: Rock-Tool Interaction

I have an opening for a new postdoctoral scholar to join my research group, please see attached. The project is on the field-scale calibration of DEM models. Primary responsibilities include developing and executing large-scale experiments, interpretation and synthesis of results, and collaboration with modelers to perform the calibrations.

Emilio Martínez Pañeda's picture

Analysis of the influence of microstructural traps on hydrogen assisted fatigue

Dear iMechanicians,

I hope some of you find of interest our latest Acta Mat. paper. We show that the concept of "beneficial traps" can enlarge by an order of magnitude the range of "safe loading frequencies" at which hydrogen embrittlement is not observed. 

Analysis of the influence of microstructural traps on hydrogen assisted fatigue

Rebeca Fernández-Sousa, Covadonga Betegón, Emilio Martínez-Pañeda

Acta Materialia 199, 253-265 (2020). Link

mponga's picture

Multiple faulty positions (tenure/tenure-track) at the Deparment of Mechanical Engineering at UBC - Vancouver

Dear Fellow Mechanicians,

I would like to draw your attention to multiple (tenure/tenure-track) positions at the Department of Mechanical Engineering at the University of British Columbia (UBC), Vancouver, Canada. In particular, three simultaneous searches in Manufacturing, Robotics, and General Mechanics are currently ongoing. For more details, please visit:

https://www.hr.ubc.ca/careers-postings/faculty.php

Job ID 38029 - General Mechanics

New PhD position at Eindhoven University of Technology - Reduced Order Modelling for Digital Twins of Medical Imaging Catheters

Dear colleagues,

a new PhD position has become available at the Mechanics of Materials group, Eindhoven University of Technology, The Netherlands.

 

Reduced Order Modelling for Digital Twins of Medical Imaging Catheters

 

Detailed information, as well as function requirements, conditions and applications details, can be found at the following website:

Xiaoding Wei's picture

Postdoc openings at Peking University

Prof. Xiaoding Wei's group at the Department of Mechanics and Engineering Science at Peking University (Group Website: https://www.nml-pku.com/) has postdoc openings for graduates with Ph.D. degrees in Applied Physics, Chemical Engineering, Materials Science, and Mechanical Engineering:

Prashant K. Jha's picture

Kinetic relations and local energy balance for LEFM from a nonlocal peridynamic model

Journal: International Journal of Fracture

Abstract: A simple nonlocal field theory of peridynamic type is applied to model brittle fracture. The kinetic relation for the crack tip velocity given by Linear Elastic Fracture Mechanics (LEFM) is recovered directly from the nonlocal dynamics, this is seen both theoretically and in simulations. An explicit formula for the change of internal energy inside a neighborhood enclosing the crack tip is found for the nonlocal model and applied to LEFM.

 

palrk's picture

PhD and Postdoc positions in meta-materials at Kansas State University

Fully funded PhD and Postdoc positions in the area of meta-materials, computational mechanics and wave propagation available in the Department of Mechanical and Nuclear Engineering at Kansas State University. Research will be in topics related to the mechanics of metamaterials and the mechanics of granular media.  

Antonio Papangelo's picture

Roughness-Induced Adhesion

Usually, roughness destroys adhesion and this is one of the reasons why the "adhesion paradox", i.e. a "sticky Universe", is not real. However, at least with some special type of roughness, there is even the case of adhesion enhancement, as it was shown clearly by Guduru, who considered the contact between a sphere and a wavy axisymmetric single scale roughness, in the limit of short-range adhesion (JKR limit).

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