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Bin Liu's picture

The widely used tensile stiffness ratio is not a correct measure of anisotropy degree

In our recent paper, some interesting conclusions are found when we attempt to establish a standardized compliance matrices for general anisotropic materials. The abstract is as follows.

PhD position at Weizmann Institute of Science on "Microscale matrix and interfacial properties of fibre-reinforced composites"

Our partner Weizmann Institute Science in Israel is currently trying to fill a PhD position for the FiBreMoD project. The title of the PhD project is "Microscale matrix and interfacial properties of fibre-reinforced composites", and will be supervised by Prof. Daniel Wagner. If you are an enthusiastic and motivated candidate with a background in Materials Science, Composites, Mechanics, or Chemistry/Chemical Engineering, then you should consider applying.

Chiqun Zhang's picture

On the relevance of generalized disclinations in defect mechanics

Chiqun Zhang            Amit Acharya

The utility of the notion of generalized disclinations in materials science is discussed within the physical context of modeling interfacial and bulk line defects like defected grain and phase boundaries, dislocations and disclinations. The Burgers vector of a disclination dipole in linear elasticity is derived, clearly demonstrating the equivalence of its stress field to that of an edge dislocation. We also prove that the inverse deformation/displacement jump of a defect line is independent of the cut-surface when its g.disclination strength vanishes. An explicit formula for the displacement jump of a single localized composite defect line in terms of given g.disclination and dislocation strengths is deduced based on the Weingarten theorem for g.disclination theory at finite deformation. The Burgers vector of a g.disclination dipole at finite deformation is also derived.

Simulation-Aided Design of Tubular Polymeric Capsules for Self-Healing Concrete

Dear all,

We have just published a new article on Simulation-Aided Design of Tubular Polymeric Capsules for self-healing concrete. It can be viewed/downloaded at: http://www.mdpi.com/1996-1944/10/1/10 (open access) or https://www.researchgate.net/publication/311861983_Simulation-Aided_Desi... (researchgate users). 

Kind regards,

Branko

Arash_Yavari's picture

On the Stress Field of a Nonlinear Elastic Solid Torus with a Toroidal Inclusion

In this paper we analyze the stress field of a solid torus made of an incompressible isotropic solid with a toroidal inclusion that is concentric with the solid torus and has a uniform distribution of pure dilatational finite eigenstrains. We use a perturbation analysis and calculate the residual stresses to the first order in the thinness ratio (the ratio of the radius of the generating circle and the overall radius of the solid torus). In particular, we show that the stress field inside the inclusion is not uniform.

Mike Ciavarella's picture

Lorentz Workshop "Micro/Nano Models for Tribology," Leiden, the Netherlands, 30/1-3/2/2017

We have organized a Lorentz Workshop with 60 selected partecipants leading scientists in tribology and contact mechanics mainly from Europe.

Attached a program.   Or see the web site

Micro/Nanoscale Models for Tribology (μ/n-Tribo-Models) 

Vladislav Yastrebov (co-organizer)

Lucia Nicola (co-organizer)

Annalisa Fasolino (co-organizer)

Michele Ciavarella (co-organizer)

Julien Scheibert (co-organizer)

International Conference ECCOMAS SMART 2017, Madrid, Spain, on smart materials

Within the frame of the 8th ECCOMAS Thematic Conference on Smart Structures and Materials (SMART 2017), to be held in Madrid, Spain, on June 5-8, 2017, we are organizing minisymposium MS13 titled “Smart materials capable of recoverable inelastic strain”. 

Relevant contributions are solicited specifically in the following technical areas:

nonlinear finite element developer position @ altair

We have an opening for nonlinear fea developer. Areas of interest includes material modeling, element formulation, contact mechanics, fracture mechanics etc. If interested send a resume to xmeng@altair.com. We also offer summer internship position. Location for the job is in Irvine CA.

Zhigang Suo's picture

Google Translate has been greatly enhanced by machine learning

Here is a long article from New York Times.  I have just tried some English-Chinese translation.  The improvement is dramatic.  Will machine learning affect mechanics.or materials discovery?

Yuanli Bai's picture

Several PhD student positions available at the MAE department of University of Central Florida, Orlando, FL

There are several PhD student positions available immediately at the Department of Mechanical and Aerospace Engineering of the University of Central Florida (UCF). Students will work on a recent DOE funded project on Cu(Al)/CNT metallic matrix nano composites. Students with background in solid mechanics, finite element analysis, or nano material processing are particularly encouraged to apply. If you are interested, please send your resume and representative publications (if have) to Dr. Yuanli Bai (bai@ucf.edu) or Dr. Quanfang Chen (Quanfang.chen@ucf.edu). The openings are for either Spring 2017 or Fall 2017. Excellent candidates can also be nominated to apply for fellowships of university level.

Sharlotte Kramer's picture

The 3rd Sandia Fracture Challenge is here!

The third Sandia Fracture Challenge is here!  We invite to you participate in this next installment of our collaborative, blind assessment of predictions of ductile fracture.  For the third SFC, we wanted to challenge the computational mechanics community to predict ductile fracture in an additively manufactured structure.

mesarovic's picture

Special Issue: Granular materials; Journal: Materials

Journal: Materials  (flyer attached)

Impact Factor 2.728

Special Issue: Granular materials   Special Issue Editor: Sinisa Mesarovic       Deadline: 15 April 2017

D. Schulte's picture

Wissenschaftlicher MA - Numerische Mechanik (FEM) -

Am Institut für Kontinuumsmechanik der Leibniz Universität Hannover ist eine Stelle als

"Wissenschaftliche Mitarbeiterin / Wissenschaftlicher Mitarbeiter" - EntgGr. 13 TV-L, 100 % - zum nächstmöglichen Zeitpunkt zu besetzen.
Die Stelle ist auf 4 Jahre befristet.

Contact stiffness estimation based on structural frequency response

 

If you work on contact mechanics, or have difficulty get your FEA model converge due to contact, you may find it beneficial reading my patent on "Contact stiffness estimation based on structural frequency response". It forms a first ever rational method to estimate the contact stiffness, and provides a practical technical solution to a real challenge in contact mechanics. For industrial FEA developers or users, please contact me for the right to commercialize or implement it. Thank you!

 

Charreyron's picture

Senior R&D Engineer positions in Mechanics of Materials.

Vesuvius USA, the world leader in ceramics and refractories related to the molten steel industry, is seeking multiple experienced Senior Research Engineers to join the Flow Control group at our world-class R&D center and laboratory headquarters in Pittsburgh, PA, USA

montero's picture

PhD Position in Multiscale analysis of energy storage systems

Dear colleagues,

Universidad Loyola Andalucía (Seville, Spain) is currently offering a PhD position starting in 2017 at the Engineering Department for multiscale multiphysical analysis of energy storage systems in renewable energies.

See the attached file for further information on the topic and the application process.

Regards,

PhD opening in computational mechanics at EPFL

I have a PhD opening in my group to start in 2017 on the multiscale modeling of fluid driven fracture propagation.

Interested individuals should contact me, and submit in parallel an application to EPFL doctoral school in mechanics

(see http://phd.epfl.ch/edme for more details about the mechanics PhD program at EPFL and the application process).

 

A brief description of the topic can be found in attached file.

Kmomeni's picture

PhD Position in Multiscale Modeling of Hierarchical Materials

A PhD position is open for summer or fall 2017 in Advanced Hierarchical Materials by Design Lab at Louisiana Tech University on multiscale modeling of hierarchical materials with an emphasis on nanocomposites. The candidates must have earned a M.Sc. degree in Mechanical Engineering or related fields and have a solid background in theoretical and computational mechanics, specifically continuum mechanics and finite element modeling, and need to have the knowledge of writing computer code (preferably using C/C++).

Tianxiang's picture

Looking for Research Intern in Schlumberger-Doll Research

Job title:  Research Internship (6 months) 

Location:  Schlumberger-Doll Research, Cambridge, MA, US

Job Description 

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