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yongni's picture

Journal Club for February 2017: Nanoscale buckling in 2D materials

    Graphene as a typical two dimensional (2D) crystal membrane attracts tremendous interest. Geometrical distortion such as nanoscale buckling morphology is widely observed in these 2D materials and is crucial to modulating the electronic properties [1].

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Ballistic impact simulation of composite targets in AUTODYN?

In general we use Johnson-Cook model for bullet, which accounts for strain-rate effects, while for the target (Composites), the we use orthotropic constitutive model. Does it mean that strain-rate effects are not important for composites? The Johnson-Cook model cannot be readily used for composites. How does the AUTODYN considers strain rate effects for composites in ballistic impact simulations? 

Stephan Rudykh's picture

DEADLINE for abstracts: 28 Feb. 2017 -- USNCCM14, Montreal, Canada

Dear Colleagues,

14th U.S. National Congress on Computational Mechanics (USNCCM14) will be held in Montreal, Canada,  17 – 20 July, 2017. As part of this meeting, we are organizing a symposium (MS710) to bring together experts in modelling, simulation, manufacturing and experimental investigation in the field of soft materials to present and discuss recent advances. Topics of particular interest include (but not limited to)

Sharlotte Kramer's picture

Sandia Fracture Challenge Update

Supplemental information for the third Sandia Fracture Challenge (SFC) is now available!  We have compiled the supplemental information promised in the original information packet and some additional information based on questions we received from participants.  The supplemental information includes electron backscatter diffraction (EBSD) data on the Challenge geometry, additional base material tests, raw DIC images and examples of DIC analyses of base material tests, and additional boundary condition information.

mihussein's picture

Special issue on "Frontiers of Mechanical Metamaterials" in Extreme Mechanics Letters

The journal Extreme Mechanics Letters has just publised a special issue on "Frontiers of Mechanical Metamaterials" featuring 14 articles. The papers "provide an ensemble of some of the most recent research themes in the field, focusing on 'extreme’ behavior in acoustic and elastic waves, mechanical response, and thermoelasticity." The editorial for the special issue is attached.

Simpleware Workshops: Denmark and Sweden (March 15th-16th 2017)

Simpleware logo

 Join us at the Technical University of Denmark on March 15th, and in Gothenburg on March 16th, for free workshops introducing how to use Simpleware software for 3D image data visualisation, analysis and model generation.

Mike Ciavarella's picture

Bigoni's group gets the 4th cover on Proc Roy Soc for Leonardo catapults

The top italian engineer Davide Bigoni gets his 4th cover in Proc. Roy. Soc. A in just 18 months 

See here.


Two M.S. positions in Computational Mechanics and Materials at University of Massachusetts Dartmouth

Applications are invited for two M.S. positions in Computational Mechanics and Materials at the Department of Mechanical Engineering at University of Massachusetts Dartmouth. The ideal candidate should have a B.S. in engineering, math or physics. The positions will start in Fall 2017.

Several developer positions available at ANSYS

ANSYS just opens several developer positions in aeas of contact mechanics, material modeling, finite element formulation, solver technology. If you are interested, please submit your application on ANSYS company website at 

How to apply a traction shear load on a surface


I wonder if some one helps me in applying shear on a surface of a cube. Do we have to apply it on two opposite surfaces. or I can fix one surface?



ESIS TC4 Conference 2017 - register by 19 May

The 8th International Conference on Fracture of Polymers, Composites and Adhesives is organised by the European Structural Integrity Society- Technical Committee 4 on Fracture Mechanics related to Polymers, Polymeric Composites and Adhesives.

It will take place between 10-14 September 2017 at Les Diablerets, in Switzerland. You can register now at


Javascript frontend for simulations?

I've been exploring the possibility of frontend development for engineering simulations in Javascript.  Following on from the previous post on generating VTK XML particle data output files from our simulation, her's a new post on reading in those files in Javascript.  See my article at

-- Biswajit

saberelarem's picture

On a systematic approach for cracked rotating shaft study: breathing mechanism, dynamics and instability

We present a systematic approach to deal with the modelling and analysis of the cracked rotating shafts behaviour. We begin by revisiting the problem of modelling the breathing mechanism of the crack. Here we consider an original approach based on the form we give to the energy of the system and then identify the mechanism parameters using 3D computations with unilateral contact conditions on the crack lips. A dimensionless flexibility is identified which makes the application of the approach to similar problems straightforward.

Society of Engineering Science - 2018 Medal and Fellow Nominations

The Society of Engineering Science oversees several awards and honors to members and eminent scholars of the field. A total of five medals are offered on an annual basis as well as election to Fellow grade of the Society. 

Please visit the website for detailed information and electronic versions of the nomination forms. For further information contact Thomas Siegmund (    

SES Fellows Nominations

Two PhD Studentships in Next-generation Aircraft Propulsion Materials (Imperial College London)

We are seeking two motivated candidates for fully-funded PhD studentship in the exciting field of high performance alloys for next-generation aero-engines.The studentships include fees and stipend of £16,553 for suitable candidates ordinary resident in the UK or EU nationals for the durati

soheil.tahmasbi's picture

Ductile damage calibration in ABAQUS


I am using abaqus for simulating a rockfall flexible barrier. I calibrated ductile damage parameters for high-strength steel wire of 4 mm diameters and the results are very close to the ones from experiment. I assume that ductile damage is a material properties and should not change by changing dimension, but when I used the calibrated parameters for 3mm wires, the results are not stisfactory. 

Shailendra's picture

Post-doctoral position in Failure of Brittle Materials at National University of Singapore

We anticipate an opening for a post-doctoral fellow position in micromechanics based failure modeling of heterogeneous brittle materials. The focus will be on characterizing the roles of flaw distributions on rate-dependent failure in materials such as concrete. The objective is to develop an understanding of failure processes with the aim of designing high performance brittle materials.


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