Natural convection occurs in many engineering systems such as electronic cooling and solar collectors. Nusselt number (Nu) is one of the most important parameters in these systems that should be under control. This investigation is a comprehensive heat transfer analysis for partially differentially heated cavities with a small thin fin mounted on the hot wall of the cavity to increase or decrease the Nu. A Boussinesq approximation was utilized to model the buoyancy-driven flow.

We would like to invite you to participate in the Mini-Symposium on "Mechanics and Physics of Solids and Structures" within "ESMC2018 - 10th European Solid Mechanics Conference" in Bologna (Italy), July 2-6, 2018.

The deadline for abstract submission is November 15th, 2017.

Mini-symposium Organizers
Sebastien Neukirch (CNRS/UPMC),
Benoit Roman (CNRS/UPMC),
Keith Seffen (University of Cambridge),
Francesco Dal Corso (University of Trento)

This is the preprint of an article that will appear in JMPS (https://doi.org/10.1016/j.jmps.2017.09.015)

Bond-level Deformation Gradients and Energy Averaging in Peridynamics

Timothy Breitzman (Air Force Research Laboratory), Kaushik Dayal (Carnegie Mellon University)

Abstract

The Hurley Research Group at Johns Hopkins University welcomes applications for PhD students to join the group in Spring 2018 or Fall 2018.

We have immediate openings for candidates in the areas of a) computational solid mechanics and b) experimental biomechanics.

Candidates with strong background in numerical simulations (finite element analysis, high performance computing, ...) or previous strong experience in experimental characterization of materials are encouraged to apply. To be considered, please send CV with a cover letter, and copy of journal publications to hatami [at] uic.edu . 

Dear Mechanicians,

You are cordially invited to submit your abstract (text 400 words) to our Symposium on Recent Advances in Mechanical Metamaterials (symposium 352) as part of the 18th U.S. National Congress for Theoretical and Applied Mechanics that will be hosted by Northwestern University at the Hyatt Regency O’Hare from June 5 to June 9, 2018.

Abstract submission is open until November 10, 2017

The attached, to appear in I.J. Impact Engng., is an attempt to simplify such very complex calculations using an incubation time concept for defects coalescence, in the spirit of Tuler and Butcher and others.

By comparing the calculations and the experiments, it seems that the approach works nicely, produces realistic results, and most of all does not necessitate complex models with too many parameters of very sophisticated FE formulations.

Enjoy

A new postdoctoral fellow position will start on 1 November 2017 at the Technion – Israel Institute of Technology.  The position is in the area of theoretical and computational modeling of failure in soft solids.  The potential candidate should have a Ph.D.

Mechanical properties of yttria-stabilized tetragonal zirconia (YSTZ) bicrystals under compressive loading are investigated by atomistic simulations. Previous studies on deformation of single-crystal YSTZ showed that some specific orientations promote dislocation emission, tetragonal to monoclinic phase transformation, or both. In this work, nanograins with different orientations are selectively combined to generate bicrystals with various grain boundaries (GBs).