iMechanica

The Department of Engineering and Balliol College at Oxford University have a University Lectureship available in the area of Solid Mechanics and Materials Engineering.  We would  be particularly interested in receiving applications in the general area of composite and lightweight materials, including, polymer, metal, ceramic, biological and multifunctional composites, foams and lattice materials. The closing date for applications is 16th January 2012.  Further information can be found in the attached files.

We look forward to receiving your application.

Alan Cocks

We present a geometric theory of nonlinear solids with distributed dislocations. In this theory the material manifold - where the body is stress free - is a Weitzenbock manifold, i.e. a manifold with a flat affine connection with torsion but vanishing non-metricity. Torsion of the material manifold is identified with the dislocation density tensor of nonlinear dislocation mechanics. Using Cartan's moving frames we construct the material manifold for several examples of bodies with distributed dislocations. We also present non-trivial examples of zero-stress dislocation distributions.

ACS Nano, DOI: 10.1021/nn204476h

There is an immediate opening for a postdoctoral research position in the Advanced Computational Research Lab at RPI, Troy NY to work on Crystal Plasticity Finite Element Methods. Currently we are working on interesting advances in the areas of radiation damage and high strain rate loading conditions. Encouraged to apply are creative, self-motivated individuals with a sound baclkground in computational mechanics, CPFEM and materials science. RPI is home to the CCNI, one of the most powerful university-based supercomputational research facilities in the world.

I have formulated a shear-lag model for calculating the variation of stress along carbon nanohorns (CNHs), which are conical shaped wrapped carbon sheets, embedded in an epoxy matrix under axial loading.  I found that the stress distribution along the length of CNHs depends on the cone angle of these structures and maximum normal axial stress has a smaller value in CNHs compared to a carbon nanotube (CNT) with same cross-section as of the CNH's tip.  Furthermore, I read an article stating that synthesis of CNHs are easier compared to CNTs.  However, the only article I could find which has s

Dear Colleague,

We are pleased to send you the updates on the 23rd International Congress of Theoretical and Applied Mechanics (ICTAM2012) of the International Union of Theoretical and Applied Mechanics (IUTAM) that will be held in Beijing, August 19-24, 2012.

Research Assistants / Research Associates (3 Posts)

Salary:


£24370 - £28251 per annum (Grade 5), £29972 - £35788 per annum (Grade 6). 
http://www.cardiff.ac.uk/jobs/engin/research-assistants--research-associ...

Reference:




2011/0608

Reference:




2011/0174 http://www.cardiff.ac.uk/jobs/engin/senior-lecturer-in-civil-engineering...

Closing date:


04 January 2012

Type:


Academic

Duration:


Open-Ended

"I can't understand how people are still working on growth. That stuff's all done." This was the beginning of the first lunch conversation at a recent Banff workshop on Mathematical Foundations on Mechanical Biology... somewhat frustrating for someone who is excited about growth. Fortunately, most of the presentations and discussions still focused on growth. Although "that stuff's all done".

Forthcoming papers of International Journal of Applied Mechanics (IJAM) Vol.4 No.1:

1.     “A SPECTRAL/HP FINITE ELEMENT FORMULATION FOR VISCOELASTIC BEAMS BASED ON A HIGH-ORDER BEAM THEORY”,  V. P. VALLALA, G. S. PAYETTE AND J. N. REDDY, (TEXAS A&M UNIVERSITY, USA).

Harvard School of Engineering and Applied Sciences

Assistant Directors for Undergraduate Studies in both Engineering Sciences and Mechanical Engineering

Consisting of alternating swelling and nonswelling polymeric layers (SLs and NLs), lamellar gels are 1D photonic crystals with tunable optical properties.  The lamellar structure induces a constraint between the SLs and the NLs, resulting in an anisotropic swelling behavior coupled with deformation.

Dear Colleagues,

The International Conference on
Advances in Computational Mechanics (ACOME) aims to present recent
advances, novel techniques, the state-of-the-art developments and
applications in the field of the computational mechanics. 

The conference will be held at the Ton Duc Thang university, Ho Chi Minh City, from 14 to 16  August 2012.

We are pleased to inform you that the new (and last) deadline for submission of abstracts is January 15, 2012.

Dear Colleagues,

we would like to inform you that the Italian Group of Fracture (IGF), engaged in fostering the research in the fields of Fracture Mechanics and Structural Integrity at the national and international levels (IGF is the Italian chapter of the European Structural Integrity Society) has recently setup the following dissemination strategies and activities for 2012:

We report the observation of remarkable electrical self-healing in mechanically damaged ZnO nanobelts. Nanoindentation into intrinsically defect-free ZnO nanobelts induces deformation and crack damage, causing a dramatic electrical signal decrease. Two self-healing regimes in the nanoindented ZnO nanobelts are revealed. The physical mechanism for the observed phenomena is analyzed in terms of the nanoindentation-induced dislocations, the short-range atomic diffusion in nanostructures, and the local heating of the dislocation zone in the electrical measurement. For details, please see

My text, Analytical Fracture Mechanics, is back in print by Dover Publications as of November 2011.

We are looking for a highly motivated candidate for the position of
Research Associate in atomistic/molecular dynamics modelling of
lubricant films.

The research project is computational based and will focus on the atomistic modelling of

• Lubricant and diamond-like carbon used in hard disk drives

The successful candidate will be awarded with a competitive renumeration package based on his/her work experience.

In the continuous theory of defects in nonlinear elastic solids, it is known that a distribution of disclinations leads, in general, to a non-trivial residual stress field. To study this problem we consider the particular case of determining the residual stress field of a cylindrically-symmetric distribution of parallel wedge disclinations. We first use the tools of differential geometry to construct a Riemaniann material manifold in which the body is stress-free. This manifold is metric compatible, has zero torsion, but has non-vanishing curvature.

I have a one-year vacant postdoc position. The work will be mostly related to development of FE models for modeling growth, differentiation, and adaptation of biological tissues. The postdoc needs to know a lot about nonlinear continuum mechanics and advanced material models and should be able to write FE codes and implement advanced material models in commercial FE programs.