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Harold S. Park's picture

Negative Poisson's Ratio in Single-Layer Graphene Ribbons

The Poisson's ratio characterizes the resultant strain in the lateral direction for a material under longitudinal deformation.  Though negative Poisson's ratios (NPR) are theoretically possible within continuum elasticity, they are most frequently observed in engineered materials and structures, as they are not intrinsic to many materials.  In this work, we report NPR in single-layer graphene ribbons, which results from the compressive edge stress induced warping of the edges.

stefanogonella's picture

PhD position in mechanics of metamaterials at the University of Minnesota

A PhD position is available in the group of Prof. Stefano Gonella at the University of Minnesota Twin-Cities. (http://personal.cege.umn.edu/~gonella/) in the area of wave mechanics of advanced materials, with focus on elastic and acoustic metamaterials.

Current topics of interest are: 1) mechanics of nonlinear metamaterials (including soft architected materials, nonlinear lattices and granular crystals) and 2) tunable and reconfigurable metamaterials.

Zheng Jia's picture

Failure Mechanics of a Wrinkling Thin Film Anode on a Substrate under Cyclic Charging and Discharging

Zheng Jia, Teng Li, Failure Mechanics of a Wrinkling Thin Film Anode on a Substrate under Cyclic Charging and Discharging, Extreme Mechanics Letters, accepted, 2016 (DOI:doi:10.1016/j.eml.2016.03.006)

 

Overhead Electrical Conductor in bending: Papailiou's model revisited

 In a paper to appear and available online,( An analytical approach to model the hysteretic bending behavior of spiral strands, Applied Mathematical Modeling 2016, http://www.sciencedirect.com/science/article/pii/S0307904X16300592 )

Pattern formation in plastic liquid films on elastomers by ratcheting

See our newly discovered phenomena, Pattern formation in plastic liquid films on elastomers by ratcheting

Here is the abstract:

ASCE AND EMI 2016 AWARD RECIPIENTS


ASCE announced the winners of six of its prestigious Society awards administered by its Engineering Mechanics Institute (EMI):

2016 Maurice A. Biot Medal: Ronaldo I. Borja, Ph.D., A.M.ASCE, Stanford University

2016 Jack E. Cermak Medal: Qiusheng Li, Ph.D., City University of Hong Kong

Kumar Ankit's picture

Influence of substrate interaction and confinement on electric-field-induced transition in symmetric block-copolymer thin films

In the present work, we study morphologies arising due to competing substrate interaction, electric field, and confinement effects on a symmetric diblock copolymer. We employ a coarse-grained nonlocal Cahn-Hilliard phenomenological model taking into account the appropriate contributions of substrate interaction and electrostatic field. The proposed model couples the Ohta-Kawasaki functional with Maxwell equation of electrostatics, thus alleviating the need for any approximate solution used in previous studies.

3rd International Conference on BioTribology (ICoBT2016)

W. Gregory Sawyer, University of Florida, USA will be the Plenary Speaker at ICoBT2016

Research Fellow (Post-doc) position in Micromechanical Modelling of Lithium-Ion Batteries

The post is funded through a recently awarded four year European H2020 research project SINTBAT (Silicon based materials and new processing technologies for improved lithium-ion batteries), and coordinated by VARTA.

Arun Prakash's picture

Nanosculpt: A methodology for generating complex realistic configurations for atomistic simulations

Atomistic simulations have now become commonplace in the study of the deformation and failure of materials. Increase in computing power in recent years has made large-scale simulations with billions, or even trillions, of atoms a possibility. Nevertheless, most simulations to-date, are still performed with quasi-2D geometries or rather simplistic 3D setups. Although controlled studies on such well-defined structures are often required to obtain quantitative information from atomistic simulations, for qualitative studies focusing on e.g. the identification of mechanisms, researchers would greatly benefit from a methodology that helps realize more realistic configurations. The ideal scenario would be a one-on-one reconstruction of experimentally observed structures. NanoSCULPT allows you to do precisely this for both crystalline and amorphous structures.

PhD Vacancy: UK Centre for Doctoral Training in Fusion Energy

I am currently looking to fill an open PhD position in a project titled:

Advanced Virtual Design of 3D Printed Fusion Reactor Components

This is to continue recent work that uses X-ray tomography, high performance computing and finite element analysis to design the plasma facing wall of the ITER reactor. Recent related publications can be found below:

Arash_Yavari's picture

A Geometric Theory of Nonlinear Morphoelastic Shells

We formulate a geometric theory of nonlinear morphoelastic shells that can model the time evolution of residual stresses induced by bulk growth. We consider a thin body and idealize it by a representative orientable surface. In this geometric theory, bulk growth is modeled using an evolving referential configuration for the shell (material manifold). We consider the evolution of both the first and second fundamental forms in the material manifold by considering them as dynamical variables in the variational problem.

Stephan Rudykh's picture

EMMC15 - Functional and Architectured Materials [deadline: March 30th, 2016]

Dear Colleagues,

15th European Mechanics of Materials Conference (EMMC15) will be held in Brussel, Belgium, during 7 – 9 Sentember, 2016. As part of this meeting, we are organizing a session (S7) to bring together experts in modelling, simulation, manufacturing and experimental investigation in the field of functional and architectured materials to present and discuss recent advances. Topics of particular interest include (but not limited to)

Full PhD scholarship at RMIT University

Full PhD scholarship (tuition fee plus $25,406/year stipend ) is immediately available at the School of Engineering, RMIT University, Australia. Applications are invited for one open position in one of the following areas: (1) Mechanics of carbon nanotubes and graphene; (2) Multiscale simulation of nanotubes/graphene reinforced composites; (3) Mechanical and Electrical behaviours of composite structures. The research work is supported by Australian Research Council under DECRA scheme. 

Dargazany's picture

PhD position in Mechanics of High Performance (bio)Materials

Our Group of High Performance Materials in Enviormental & Civil Engineering Department at Michigan State University has an openings for PhD positions to work on Multiscale Modeling of Soft Materials starting Fall 2016.

 

alicia's picture

Two Postdoc + two PhD Openings in Topology Optimization, Cardiff University, UK

Applications are sought for four Post-Doctoral Research Associates and two PhDs to join a very active research group at Cardiff University, UK (School of Engineering).  Based in Cardiff, there will be frequent interactions with the University of California, San Diego as well as major aerospace companies in the UK. The research will formulate and develop numerical methods for mulitiscale and multiphysics design optimisation using level set topology optimization.

ASSISTANT PROFESSOR IN AEROSPACE ENGINEERING IN INDIA

The Department of Aerospace Engineering at the Indian Institute of Technology, Madras is seeking to fill Assistant Professor vacancies in the following research areas.

1) Experimental Structural Mechanics/ Composites
2) Aircraft Aerodynamics (experimentalists preferred)
3) Control and Flight Mechanics of Aerospace vehicles
4) Aircraft Design (aerodynamic/structural)

Apply online at www.iitm.ac.in by 10th April 2016.

3 PhD positions in Additive Layer Manufacturing Computational Mechanics in Belgium and Luxembourg (FNRS-FNR funded)

Context

Profs. Thierry J. Massart (Universite Libre de Bruxelles), Ludovic Noels (Universite de Liege) and Stephane P.A.
Bordas (University of Luxembourg) have recently been awarded a joint research project by the FNRS and FNR.
The project focuses on the mechanical behavior of discrete metallic materials, such as metal foams and printed metallic structures

PhD opportunities

Ali Ramazani's picture

Correlation between 2D and 3D flow curve modelling of DP steels using a microstructure-based RVE approach

Since real specimens deform three-dimensionally, 2D modeling approaches cannot predict the flow curve of the material precisely. The predicted flow curves obtained from 2D modeling can, however, be correlated to the 3D ones by introducing a correlation factor, We quantified by the stress ratio (σ3D/σ2D) based on the 2D and 3D RVE calculations for DP600 steels with various martensite phase fractions (Vm=0–50%) at different equivalent plastic strains varying from εpeq=0 to 0.1.

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