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ABQ Python Scripting to create mesh definition without geometry

Submitted by jo-heintz on
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Dear iMecanica community,

with ABQ I'd like to create a mesh part without an associated geometry using the bottom-up-technique.
I already found the Python commands to add nodes to an orphaned mesh (from an inp-file).
In order to this I must first import an existing part and make node definitions on the orphan mesh part.
Is there a way in ABQ to define nodes, elements, etc. directly using scripting commands without
creating an orphan mesh part (by importing a model)?

ICE's Engineering and Computational Mechanics general call for papers!

Submitted by Rebecca Ratty on

Dear Colleague,



Engineering and Computational Mechanics is currently looking for papers on the theme of Disaster and Hazard engineering for publication in 2014. Sub-topics include risk analysis and pre-emptive disasters.

Other themes EACM is interested in are: Fluid Structure interaction especially ringing phenomenon; Energy and renewable energy including offshore and waves; and review papers covering the themes in the call for papers.

Phononic crystal with adaptive connectivity: A new approach to 'smart' materials

Submitted by AndreaBergamini on

In recent times, mechanical metamaterials and a phononic crystals have attracted the attention of some groups, as they allow to exploit on a larger scale phenomena known from solid state physics, such as the creation of band gaps at certain frequencies. The peculiarity of metamaterials is that their effective properties emerge from the periodic geometric organization of their unit cells rather than from the constituting bulk materials. Furthermore, metamaterials can be built in any size, ranging from the nanometer to the meter scale, and out of any material to suit different needs.

Navier-Stokes model with viscous strength

Submitted by Konstantin Volokh on

In the laminar mode interactions
among molecules generate friction between layers of water that slide with
respect to each other. This friction triggers the shear stress, which is
traditionally presumed to be linearly proportional to the velocity gradient.
The proportionality coefficient characterizes the viscosity of water. Remarkably,
the standard Navier-Stokes model surmises that materials never fail – the transition
to turbulence can only be triggered by some kinematic instability of the flow. This
premise is probably the reason why the Navier-Stokes theory fails to explain