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Teng Li's picture

Mechanicians and Materials Scientists elected to US National Academy of Engineering

The US National Academy of Engineering (NAE) has elected 83 new members and 16 foreign members, announced NAE President C. D. (Dan) Mote, Jr., today. Among the newly elected NAE members include the following mechanicians and materials scientists:

Anand, Lallit, Warren and Towneley Rohsenow Professor of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge. For contributions to the development of plasticity for engineering technology: theory, experiment, and computation.

NAE Foreign Members:

tyler westover's picture

Postdoctoral Position in FEM Flow Modeling

Idaho National Laboratory is seeking a post-doctoral researcher  to perform research in developing numerical simulations to understand and predict the flow behavior of diverse particulate (granular) materials. Target applications include feeding and handling systems, including bins, hopper, and augers, as well as existing and future laboratory instruments that can be used to characterize feeding and handling properties.

Open-PhD Positions in Energy Conversion in Nano Materials and Solar Cells

Energy, Control and Optimization (ECO) https://www.ecolab.tamu.edu/ in the Department of Mechanical Engineering at Texas A&M University has two open PhD positions. The research project is about energy conversion in Nano-materials and thin film solar cells. Candidates should have a strong background and interests in Radiative Heat Transfer, Nano-Materials, Nano fabrication, Computational Methods and Machine Learning. Programming experience in MATLAB or Python is necessary.

Leslie Lamberson's picture

PhD Positions in Dynamic Behavior of Materials

The Dynamic Multifunctional Materials Laboratory at Drexel University in Philadelphia is currently looking for up to 5 graduate students for new research projects on high rate mechanics of materials in 2018.  Positions can start as soon as this summer, or the in the fall.   http://dynamic.mem.drexel.edu

tehrani's picture

Congress-Wide Symposium on Additive Manufacturing (ASME-IMECE 2018): abstract deadline Feb 26

Congress-Wide Symposium on Additive Manufacturing (Topic 2-2)IMECE-ASME, Pittsburgh, PA, November 9-15th of 2018. The abstracts (400-650 words) are due Feb 26th.  

https://www.asme.org/events/imece

 

Michael A. McCarthy's picture

Faculty post in Composite Aircraft Structures Engineering

The University of Limerick in Ireland is seeking applicants for the following position:

Lecturer below the bar in Composite Aircraft Structures Engineering - Specific Purpose Contract

 

Salary Scale: €38,731 - €53,249 p.a.

 Further information for applicants and application material is available online from:

A.Tabarraei's picture

PhD position in computational solid mechanics

A PhD position is available in the Department of Mechanical Engineering and Engineering Science at the University of North Carolina at Charlotte. The research project is in the multiscale modeling of damage and fracture. Candidates should have a strong background and interests in continuum mechanics and finite elements modeling. Programming experience in Fortran or C++ is a big plus. The starting date for this position is August 2018.

Antonio Papangelo's picture

Adhesion between a power-law indenter and a thin layer coated on a rigid substrate

Abstract: In the present paper we investigate indentation of a power-law axisymmetric rigid probe in adhesive contact with a "thin layer" laying on a rigid foundation for both frictionless unbounded and bounded compressible cases. The investigation relies on the "thin layer" assumption proposed by Johnson, i.e. the layer thickness being much smaller than the radius of the contact area, and it makes use of the previous solutions proposed by Jaffar and Barber for the adhesiveless case.

Modeling/defining Loop of blocks of different load amplitude

Choose a channel featured in the header of iMechanica: 

Dear all

In the experiment setup, the fatigue loading spectrum has a loop of 2 blocks of load amplitude. First load amplitude the higher applied for 2X time period followed by lower load amplitude for X time period then the loop repeated till failure.  the load sequence was High-Low and Low-High in this loop. X was in thousands so might be suggested as the cyclic response will be stabilized in the first 10 cycles, the first block will dominate the fatigue behaviour at least till fracture, or damage initiation.

sergkuznet's picture

Topology optimization of magnetic source distributions for diamagnetic and superconducting levitation

Topology optimization is used to obtain a magnetic source distribution providing levitation of a diamagnetic body or type I superconductor with maximized thrust force. We show that this technique identifies non-trivial source distributions and may be useful to design devices based on non-contact magnetic suspension and other magnetic devices, such as micro-magneto-mechanical devices, high field magnets etc.

Mike Ciavarella's picture

a "contact sport" between academics

Recently, there was a big competition announced for rough elastic adhesive contact --- by Martin Muser as organizer.  This was published in Tribology Letter, involved the effort of many groups in the world, and finally got even a commentary in Science by Rob Carpick.

Mike Ciavarella's picture

A recent PNAS paper explained! FRACTURE MECHANICS SIMPLE CALCULATIONS TO EXPLAIN SMALL REDUCTION OF THE REAL CONTACT AREA UNDER SHEAR

If you have seen the very nice PNAS paper which just appeared

Sahli, R., Pallares, G., Ducottet, C., Ben Ali, I.E., Al Akhrass, S., Guibert, M., Scheibert, J., 2018, Evolution of real contact area under shear, Proceedings of the National Academy of Sciences, 115(3), pp. 471-476.

Here we provide a simple explanation.

FACTA UNIVERSITATIS

Series: Mechanical Engineering

DOI: 10.22190/FUME180108007C

Short Communication

FRACTURE MECHANICS SIMPLE CALCULATIONS TO EXPLAIN SMALL REDUCTION OF THE REAL CONTACT AREA UNDER SHEAR

UDC 539.6

18-month post-doctorate position at SRMP, CEA/Saclay, France, starting from April 2018

Title of the project: Ab initio modelling of interactions between dislocations and solutes in body-centered cubic metals

Research area: Solid State Physics, Materials Science

Summary of the project:

Mike Ciavarella's picture

a quite critical comment of a recent set of fretting fatigue experiments

 

Effect of out-of-phase loading on fretting fatigue response of Al7075-T6 under cyclic normal loading using a new testing apparatu

Article reference: EFM5856
Journal title: Engineering Fracture Mechanics
Corresponding author: Prof. M. Ciavarella
First author: Prof. M. Ciavarella
Online publication complete: 1-FEB-2018
DOI information: 10.1016/j.engfracmech.2018.01.031

Dear Prof. Ciavarella,

Emilio Martínez Pañeda's picture

Non-local plasticity effects on notch fracture mechanics (code included)

I hope some of you find this work interesting, the code with the control algorithm (Segurado and Llorca, 2004) to avoid convergence problems in cohesive zone model analyses of crack propagation can be downloaded from empaneda.com/codes (documentation and Abaqus input files are provided).

Non-local plasticity effects on notch fracture mechanics

Emilio Martínez-Pañeda, Susana del Busto, Covadonga Betegón 

Theoretical and Applied Fracture Mechanics (2017)

Mike Ciavarella's picture

brake squeal

An interesting commercial/scientific paper 

Mahdi Z.'s picture

Mechanics of an elastic solid reinforced with bidirectional fiber in finite plane elastostatics

A continuum-based model is presented for the mechanics of bidirectional composites subjected to finite plane deformations. This is framed in the development of a constitutive relation within which the constraint of material incompressibility is augmented. The elastic resistance of the fibers is accounted for directly via the computation of variational derivatives along the lengths of bidirectional fibers. The equilibrium equation and necessary boundary conditions are derived by virtue of the principles of virtual work statement.

Yaning Li's picture

Ph. D position: Mechanics and 3D Printing

Level: Ph.D, start from Fall 2018
When: Apply Now by sending CV to  yaning.li@unh.edu
Fellowship: Deadline 02/25/2018.  (again directly sending CV to yaning.li@unh.edu) https://ceps.unh.edu/graduate-fellowships
Project: NSF/CAREER award on Chiral Auxetic Composites

ludovicnoels's picture

PhD position in “Nano-indentation for sub-miniaturized testing of irradiated materials: FEM analysis and experiments”

Context
As part of a collaborative project between the University of Liege (Belgium), the Academy for Nuclear Science and Technology (Belgium), and the Université Catholique de Louvain (Belgium), there is an open position to develop and validate a full-scale model for the nano-indentation process of neutron and ion irradiated steels.

ludovicnoels's picture

PhD position in "multi-scale computational mechanics: impact failure of composites"

Context
As part of a collaborative project between different Belgian industrial partners and Universities related to the study of composite laminate under impacts, the main objective of the doctoral position will be to develop a multi-scale numerical framework to study failure of the synthesized materials.

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