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Aerodynamics of Flapping Wings for Biomimetic Flying Devices

Submitted by ADINA Support on

We present an interesting application of ADINA FSI in the

analysis of biomimetic flying devices. Please see

http://www.adina.com/newsgH62.shtml

You can find many other examples of applications of ADINA in the

analysis of multiphysics problems here:

http://www.adina.com/multiphysics.shtml

Euromech workshop on Multiscale effects in Fatigue, July 7-9, 2010 at the Ecole Polytechnique

Submitted by Mike Ciavarella on

Dear Collegue



We are organising in July 7-9, 2010 an Euromech workshop on Multiscale

effects in Fatigue, at the Ecole Polytechnique, near Paris in France.

Outcomes and topics are detailed on the following web site:



http://www.lms.polytechnique.fr/Euromech



We would be honoured if you could contribute to this workshop to present

some of your recent research results.  The workshop is thought as a small

Dielectric elastomers of interpenetrating networks

Submitted by Zhigang Suo on

Recent experiments have shown that a voltage can induce a large deformation in an elastomer of interpenetrating networks. We describe a model of interpenetrating networks of long and short chains. As the voltage ramps up, the elastomer may undergo a snap-through instability. The network with long chains fills the space and keeps elastomer compliant at small to modest deformation. The network with short chains acts as a safety net that restrains the elastomer from thinning down excessively, averting electrical breakdown.  It appears possible to find a dielectric elastomer capable of giant deformation of actuation.  You can read the paper, or take a look at the slides posted here.

Iterations in VUMAT

Submitted by cece83 on

Dear all,

I' m trying to make a model in VUMAT for shape memory alloy based on Lagoudas 's thermomechanical constitutive model. It seems that It's necessary an iteration to evaluate the thermoelastic prediction.

My questions are : is it possible to use an iterative loop in the VUMAT or it's better to avoid it??Could someone suggest me a different way so that I can avoid the iterative loop?

Many thanks,

Cece

 

ANSYS Modelling 3D Surface-to-surface Contact, need help

Submitted by pday on
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I am fairly new to ANSYS and have been trying to model the interaction between glass micro-spheres and silicone polymer micro-structures for my dissertation research.  I've been working through the online manual, but have been getting very odd results when running the simulation.  Any help at all would be appreciated.  The summary of my problem is as follows:

 Modelling: