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Coupling Abaqus with an aeroedynamic BEM code to compute aeroelastic respons

Submitted by Anonymous (not verified) on
research
aeroelasticity
User subroutines in ABAQUS
Fluid-Structure Coupling

For my graduation work (student at the Delft university of Technology, The Netherlands), I am trying to model the aeroelastic behavior of a wind turbine rotor. For this end I use an Abaqus model of a wind turbine blade (which is a composite structure with different fiber layers and corresponding orientation). The aerodynamic force is calculated by a BEM code (Blade Element Momentum theory), which is a simplified engineering aerodynamic code: fast but still quite good. Using CFD to calculate the loads is out of the question since it requires far too much time to calculate.



interface mechanics

Submitted by Anonymous (not verified) on
research
Plasticity

In joint material interface between elastic and elastic-plastic material, how can we show the continuity of displacement theoretically?It must be continuous and compatible of deformation in practical case.Could anyone help me to understand this answer?

elastomer gasket life prediction using Fea

Submitted by tmssankar on

hi all i am doing Masters  my project is  Elastomer gasket life prediction using Fea.

my project objective is predict the service life of elastomer gasket in intake manifold of engine.

i am using the tool abaqus.its an visco hyperelastic approach. constitutive model consists of

  hyperelastic:  Ogden model

 viscoelstic :prony series

Load-displacement curves

Submitted by kashoo on
opinion
nanoindentation

I am trying to simualet Indentation Hardness Testing in ABAQUS and feeling like that there is some problem in my model.

Whenever I try to plot load-displacement curves it gives me bumps in the curve. Any idea, what should I do?

Should I reduce mesh size, I have done but then it gives me error with step size and so on.,

Domain control in ferroelectric nanodots through surface charges

Submitted by Jie Wang on
research
ferroelectric nanostructures
domain patterns
vortex state

The ability to control the domain patterns in ferroelectric nanostructures holds promise as a method to tailor physical properties for specific applications. We proposed a new way to control the domain patterns in ferroelectric nanostructures. Desirable domain patterns can be obtained through different surface charges. The surface charges can be supplied by the atomic and molecular adsorbates on the surfaces of ferroelectric nanostructures.

IPEBS

Submitted by Anonymous (not verified) on
education
Pipe stress

Hi,

I am intrested in Process piping design and saw an institude in India  called IPEBS based in HYDERABAD  that offers such courses. I would like to know if this institude is a good one. Other recomendations are welcome.

Thanks for your information.

Ethan

Deadline Extended for 21st Annual Melosh Competition

Submitted by John E. Dolbow on
research
finite element
melosh competition
graduate student

The deadline for abstracts for the 21st Annual Melosh Competition has been extended until January 30.  All interested graduate students are encouraged to apply.

 This competition for the Best Student Paper in Finite Element Analysis will be held at Duke University on Friday, April 24, 2009.  The competition has become one of the premier graduate student events in the broad area of computational mechanics.  

ABAQUS model for special joint element and spring element

Submitted by jordan2 on
education
abaqus modelling
connector
spring element
special connecting element

Very urgent two enquires:

1. How to model rotational spring element in order to define a curve
like M=k*(theta) where theta is the rotaional angle? It seems that
abaqus could only provide F=kx model.

 

2. there is a dashpot connector element which behaves like F=C * V
(where C is a constant), can I ask how to model F=C*(dv/dt)=C*a(where a
is the derivative of change of velocity)?

Thanks.

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