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Nuwan Dewapriya's picture

Modelling fracture of graphene using Griffith’s criterion and quantized fracture mechanics

In armchair graphene sheets, crack propagates perpendicular to the applied strain, whereas crack propagation in zigzag sheets occurs at an angle to the straining direction. This occurs due to different bond structure along armchair and zigzag directions as shown in Fig. 1. Videos 1 and 2 show the fracture of armchair and zigzag sheets, respectively.

 

Fig. 1: Armchair and zigzag directions of graohene

Oden Warren's picture

UPDATED: Nanobrücken 2014 Nanomechanical Testing Workshop

Dear Colleague: You are cordially invited to participate in the Nanobrücken 2014 Nanomechanical Testing Workshop, which will take place March 26-28, 2014 at INM - Leibniz Institute for New Materials in Saarbrücken, Germany. This will be the 4th edition of the annual Nanobrücken workshop series. This year's Keynote Speaker will be Andrew Minor (University of California, Berkeley).

Reversible cyclic deformation mechanism of gold nanowires by twinning–detwinning transition evidenced from in situ TEM

Reversible deformation of metal nanowires accommodating large strains by twinning-detwinning

 

In situ studies of deformation in metal nanowires have yielded interesting results, as recently published in Nature Communications. An international research team performed cyclic loading on gold nanowires and observed twinning and detwinning phenomena, respectively caused by tensile and compressive loading, and elucidate the underpinning mechanism by molecular dynamics simulations.

Oden Warren's picture

Nanobrücken 2014 Nanomechanical Testing Workshop

The Nanobrücken 2014
Nanomechanical Testing Workshop
will take place March 26-28, 2014 at INM -
Leibniz Institute for New Materials in Saarbrücken, Germany. This will be the
4th edition of the now-annual Nanobrücken workshop series. This year's 
Keynote Speaker will be Andrew Minor (University of California, Berkeley).

Payam Soltani's picture

Nonlinear free and forced vibration analysis of a single-walled carbon nanotube using shell model

 By :Payam SOLTANI, J SABERIAN, R BAHRAMIAN, A FARSHIDIANFAR

In this Paper, the nonlinear free and force vibration of a single-walled carbon nanotube (SWCNT) with simply supported ends is 

investigated based on von Karman’s geometric nonlinearity. The SWCNT described as an individual shell and the Donnell’s 

equations of cylindrical shells are used to obtain the governing equations. The Galerkin's procedure is used to discretized partial 

Cemal Basaran's picture

Post-Doc position for Monte Carlo simulations in Graphene power electronics

A post-Doc position is available on a project on Ensemble Monte Carlo simulations of graphene for power electronics applications for studying the effect of boundary scattering of charge carriers in graphene nanoribbons. The project is sponsored by the Office of Naval Research- global (ONR) - Department of Defense (DOD)- U.S. Navy. 

keten's picture

Postdoctoral Position Available at Northwestern University

A postdoctoral associate position is available immediately at the Computational Nanodynamics Group at Northwestern University. This research project focuses broadly on the atomistic and meso-scale modeling of biomolecular materials and their interfaces with engineered polymers. Nanostructural predictions, self-assembly studies, and simulations of mechanofunctional behavior constitute the scope of the project.

3rd International Conference on Material Modelling incorporating the 13th European Mechanics of Materials Conference

Dear Colleagues,
During the last decades material modelling has become a field of central
scientific importance. Although there exist many workshops, meetings,
colloquia, etc. on specific materials, and particular applications, here a
single conference dedicated to material modelling with all its various
facets is intended. To this end, the aim of the ICMM conference is to bring
together researchers from the various fields of material modelling and
materials characterization. The intention here is to cover essentially all

Ettore Barbieri's picture

PhD Studentship available at Queen Mary, University of London in the SEMS

Research Studentship (PhD) in Computational Material Science: the topic is computational nano mechanics and concurrent multiscale methods for composites under impact loading.

Zhiliang Zhang's picture

Three PhD positions in Nanomechanics at Norwegian University of Science and Technology (NTNU)

The Norwegian University of Science and Technology (NTNU) announces three vacant PhD positions in the area of Nanomechanics. NTNU is responsible for educating 80% of the total master level engineers in Norway and represents academic eminence in technology and natural sciences as well as in other academic disciplines. The activity at NTNU includes international collaboration with a large number of industries and academic institutions. The topics of the three PhD positions are strongly connected to industrial applications.

Payam Soltani's picture

Nonlinear vibration of a nanoplate embedded on a Pasternak-type foundation using nonlocal continuum theory

Nonlinear vibration of a nanoplate embedded on a Pasternak-type foundation using nonlocal continuum theory

BY: Payam Soltani, V. Kamali , O. Pashaei Narenjbon,  A. Farshidianfar 

Abstract:

Nonlocal plate continuum model is utilized to investigate the nonlinear vibration behaviour of a singlelayer

nanoplate. The isotropic nanoplate is assumed to be embedded on a Pasternak-type elastic foundation with the

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