I tried to solve the problem
that a rigid disc under harmonic moments resting on a porous half-space, the
porous medium is modeled using Biot's theory, when I consider the disc as
totally impervious, I found from the numerical results that negative damping
appears when the permeability of the porous medium is very low at a small
exciting frequency. I have no idea whether this is possible, can someone give
me some suggestions? Thanks very much.  

I am trying to model the soil churning action of a rotary tiller trough soil structure interaction. Based on some published articles, DEM and SPH approach both have been used to model the tool interaction with the soil. I am little confused in the selection of the appraoch. Can somebody throw some light on advantages and disadvantages of one approach over another and which approach should be chosen for more realistic results.

Our Mechanics of Materials Group at Eindhoven University of Technology, the Netherlands has two openings for talented PhD students in the field of multiscale mechanics of materials. They are part of a European Union funded project on multiscale methods for advanced materials. One opening is on the development of a fundamentally new multiscale approach towards material modelling and the other aims to integrate this approach with experimental methods.

The Nanomechanics Simulations Laboratory at the Mechanical
Engineering Department, Technion, Israel, is recruiting Postdoctoral
researchers and/or PhD candidates in the area of modeling the plastic deformation of metallic specimens at the nanoscale.
The research involves performing simulations at various scales
(Molecular Dynamics, Dislocation Dynamics and Finite Elements Analysis).
We are looking for highly motivated applicants, who are familiar with
modeling mechanical properties. Applicants with a strong background in

OBJECTIVES AND TOPICS

Faculty positions

The Mechanical Engineering Department at the
American University of Sharjah (AUS) is seeking applicants for permanent
appointments at the Assistant or Associate Professor rank in all disciplines of
Mechanical Engineering. Additionally, the department has openings, starting in
January 2014, for one-year visiting positions at all ranks and all disciplines including
design and manufacturing, dynamics and control systems.

Post-Doc Position: Colloids in polymer systems: Numerical studies and simulations

The Material and Process Simulation group at the University of Bayreuth is offering a

1 Post-Doc Position TV-L E13 (m/f)

Colloids in polymer systems: Numerical studies and simulations