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STROH formalism or Lekhnitskii in MATLAB

Submitted by mgz1985 on
research

Hi All,

 I am a PhD student working with anisotropic elasticity to model T-stress. I understand the simplicity of derivation in Stroh formalism but am lost in the Matrix algebra whereas Lekhnitskii provides complex derivation for the formulation but on first glance, it seems more user friendly for numerical modelling.

 Does someone have an experience in modelling the either one formalisms with MATLAB and could he share his experience?

 Thanks for the sharing of information.

EU funded R and D Position – Software Programmer

Submitted by Philippe on
job

Overview



Simpleware (http://www.simpleware.com) is looking for a software programmer in a Research and Development role to develop novel image based mesh generation tools under the auspices of an EU Framework 7 Initial Training Network (ITN). You will be working closely with the Managing Director and the software development team. The position is open to nationals of any country except UK citizens or those that have been resident in the UK for more than 12 months in the last 3 years.



Post Doc Position: EPSRC – Software Programmer at the University of Exeter, Numerical Prediction of Moisture Damage in Asphalt

Submitted by Philippe on
job

Overview



A 24 Month Post Doctoral position is available at The University of Exeter (www.exeter.ac.uk) for a software developer in a Research and Development role to develop image processing tools under the auspices of an EPSRC grant. This is a joint project with TU Delft and De Montfort University. The work at Exeter will be in close collaboration with software company Simpleware Ltd (www.simpleware.com).



supports in Abaqus

Submitted by mahmood seraji on
research
support

Dear friends



I am modeling a
plate subjected to the vertical loading. the problem is, when the analysis goes
to the nonlinear part, the reactions in some nodes get negative value, while the
plate must be free to move upwards. so there must be no negative value
for reaction. i was wondering, if someone help me define the support in a way
that the plate would be free to move upward and constrain it for the downward
movwement.



Best Regards

Modeling of RC Beam in ANSYS

Submitted by A. B. M. Amrul Kaish on
research
Dear All,



I
faced problem in modeling Reinforced Concrete Beam considering discrete
reinforcement. Its a 10'X12"X6" sized beam reinforced with 2-10mm long
bar. I first model the concrete volume, mesh it & then create link
elements individually. The model shows ultimate load, deflection, mid
span stress very much close to theoretical values. But the problem is:
it doesn't show any crack/crush in concrete. I tried to get it, but
failed.



Acta Mechanica Solida Sinica, Vol 24 issue 3 online now

Submitted by C Amss on
research
solid mechanics

Dear colleague,   

The third issue in 2011 (Volume 24, Issue 3) of Acta Mechanica Solida Sinica (AMSS) is now online. 

Welcome to this SCI-indexed journal <http://ees.elsevier.com/camss/&gt; for rapid publication of your exciting results.

_______________________________________________________________________________

A one-dimensional Rod Model for Carbon Nanotubes

Submitted by Ajeet Kumar on
research
Carbon nanotube
Cosserat rod

We recently published a paper in International Journal of Solids and Structures titled "A rod model for three dimensional deformations of single walled carbon nanotubes".(paper attached)

http://www.sciencedirect.com/science/article/pii/S0020768311002149

Damage models implementation in ABAQUS

Submitted by Hakkı ISIK on
research
damage mechanics
ABAQUS/CAE

Hi all

I am M.Sc. sutdent in Istanbul Technical University and my research subject is comparision of several ductile damage models both computationaly and experimentally.

I am trying to compare ductile damage models such as Freudenthal,Cockroft,Ayada ,Brozzo etc. computationally using ABAQUS and seeking a way to implement these damage models in ABAQUS.

To obtain each models damage result individually should damage model be implemented in ABAQUS or  can a regular tensile test results be used for calculation of damage values.

Could you please advise me for methodolgy to run a simulation to obtain ductile damage values accordng to models mentioned above.

Thanks in advance for your help.

Hakkı ISIK.

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