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3rd ECCOMAS Thematic Conference on the Mechanical Response of Composites 2011, First Announcement

Submitted by jansen on
conference
Composites

The Institute of Structural Analysis (ISD) organizes the ECCOMAS Thematic Conference on the Mechanical Response of Composites from 21st - 23rd September 2011 in cooperation with the German Aerospace Center (DLR), the Graduate School on Multiscale Methods for Interface Coupling (MUSIC) of Leibniz Universität Hannover, and REpower Systems AG.

 

Literature help

Submitted by Oat on
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Fluid Mechanics Forum
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problem-solving

Dear Sir or Madam,

 

I am Mechanical Engineering student I have problems

with finding book with solved problems in Potential Flows,

Fluid Mechanics.

 

I would be grateful if you could  recommend me

some book or other source wich contains many

solved problems of this matter.

 

Thank you very much.

 

Sincerely,

 

Oat

 

ANSYS VISCOELASTIC MODELING

Submitted by saurabh_2110 on
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viscoelasticity
ansys

Hi,

 I am trying to model a sheet of Poly Vinyl Butryl (PVB), which is a viscoelastic material in ANSYS. I have all the regular properties like elastic, shear and bulk modulus, poisson ratio, denstiy and damping factor. I also have a stress- strain curve of PVB. With all this data, is it possible for me to find the various constants in the viscoelastic models using ANSYS?

 Thanks

Saurabh 

How to define Pre-Strain (or Pre-Tension) in ABAQUS?

Submitted by mremami on
education

Hi,

I want to medel an overhead line conductor in Abaqus. As you know, the suspended cable has a parapolic (or catenary) profile under its weight. There is a pre-tension (or pre-strain in elastic region) on the cable due to its weight.

I found in the help of Abaqus that I can use the "Bolt load" option to define the pre-tension, but it does not work for my model. Because my model doesn't have surface to choose for this type of load (it's a 2D wire part).

Would you please let me know how can I define this pre-tension (or pre-strain) in my model?

What is axis of pure rotation?

Submitted by sreenath on
education
rigid body kinematics

   The concept of axis of of pure rotation  ( or instantatious center of rotation)  is a bit confusing. The text books in engineering mechanics( Irvin shames , Beer & Johnston etc) tells that the locus of points in a body, which is (are) having zero veloity.   This fits  well in case of a 2D motion. As a limiting case of this we are assuming the center of rotation is at inifinity for a rigid body moving in a straight line

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