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Flow Induced Vibration in pipe flow

Submitted by kdevarajanmts on
research

Hi all

 

I am doing flow induced vibration analysis in pipe using ansys workbench. First i created fluent model and this output(solution) is couple with tranient structural  setup. FInally the pipe gets displaced becuase of fluid pressure. After that i want to calculate the modes. So it is possible to couple transient structural solution to modal setup? I have tried but i didnt know how to couple modal analysis and transiest structural analysis. Please help me regarding in this.

 

Waiting for yours reply

 

Plasticity and non-Schmid effects

Submitted by Stefan C. Soare on
research
Plasticity
flow rule

If slip is the only mechanism of
plastic deformation of a crystal and Schmid law governs the slip
activity, the overall response of an aggregate of such crystals
features the normality rule of classical plasticity, see
node/15347
for a rigorous recent proof. Any deviation from Schmid law is
referred to as a non-Schmid effect. In general, these effects may be
of two kinds: in addition to the resolved shear stress (on a slip
system), other stress components may influence slip activity or/and
the hardening of a slip system (representative examples for each kind
are described, for example, in Qin and Bassani(1992) and Spitzig

Plastic Spin

Submitted by Stefan C. Soare on
research
Plasticity
plastic spin
normality rule

In the classical (rate-independent)
theory of metal plasticity, the plastic spin has been an issue of
research and debate for about thirty years. Judging by the content
of current publications on the topic (regarding modeling
possibilities, consequences and applications), it seems that the
concept has acquired a certain degree of acceptance, although no
rigorous justification, at theoretical level, has ever been provided.
In the attached preprint this matter is investigated starting from

2013 Timoshenko Medal paper by Prof. Richard Christensen

Submitted by Yonggang Huang on
research

The 2013 Timoshenko Medal paper "Completion and Closure on Failure Criteria for Unidirectional Fiber Composite Materials " by Professor Richard Christensen from Stanford University is published in the Journal of Applied Mechanics in its January issue, 2014.  Professor Christensen will receive the ASME Timoshenko Medal at the IMECE conference in San Diego, CA, in November, 2013.

Using XFEM with Implicit Dynamic step in Abaqus

Submitted by deepak_0308 on
research
xfem
ABAQUS/CAE
Implicit dynamic

Hi,

I have used XFEM in Abaqus for static analysis. I use traction-separation cohesive behavior with XFEM.

I want to use XFEM in implicit dynamic analysis. I am using Abaqus version 6.12. As far as I know xfem was allowed only with static analysis in earlier Abaqus versions (6.9). I read that the newer versions have implicit dynamic analysis compatiblity with XFEM.

PhD Position in Computational Modeling of Soft Active Materials

Submitted by Harold S. Park on
research
phd
finite element
dielectric elastomer

I am looking to recruit a new PhD student in the area of computational modeling of soft active materials.  The position will begin as early as January 2014, or alternatively in September 2014.  Requirements for this position including the ability to program in C++, knowledge of nonlinear finite element methods and continuum mechanics, and a good background in solid mechanics.  If interested, please contact me at parkhs(at)bu.edu, with a copy of a CV and a description of your previous research experience.

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