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A comparison of Ansys Shell181 and Solsh190 elements

Submitted by Biswajit Banerjee on

Please find attached a report on a comparison between ANSYS SHELL181 and SOLSH190 elements with particular emphasis on applicability to linear elastic sandwich panels.

Title: Comparison of Ansys elements Shell181 and Solsh190

Abstract:

Post-Doctoral Fellow in Computational Structural/Solid Mechanics and Design

Submitted by Masoud Rais-Rohani on

Applicants are sought to fill a post-doctoral position in

computational solid/structural mechanics and design. The selected applicant will work

closely with Prof. Masoud Rais-Rohani and his research colleagues and graduate

students at the Center for Advanced Vehicular Systems (CAVS) in the Bagley

College of Engineering at Mississippi State University. Applicants must have strong background

in finite element analysis with good knowledge of commercial codes such as ABAQUS, LS-DYNA, or MD Nastran.


Post-Doctoral Fellow in Computational Structural/Solid Mechanics and Design

Submitted by Masoud Rais-Rohani on

Applicants are sought to fill a post-doctoral position in
computational solid/structural mechanics and design. The selected applicant will work
closely with Prof. Masoud Rais-Rohani and his research colleagues and graduate

Can you imagine a mechanical system that is stable without friction, but suffers a flutter instability when friction is 'added'?

Submitted by Davide Bigoni on

Have you ever seen a structure subject to flutter instability?

Can flutter instability be connected to dry friction?

We provide positive answers to the above questions, watch the video at

http://www.ing.unitn.it/~bigoni/flutter.html


superlattice brillouin zone and Symmetry points

Submitted by rmbarki on

Hi

I was trying to find the brillouin zone of a GaAs superlattice and their points of symmetry to use it in determing the bandstructure. I am using the [111] as the z direction and the structure is periodic in the x and y direction but none periodic in the z direction. I am still looking for my way in this field and i couldnt find a good textbook that explain this, especially how to find the symmetry points of a crystal whether it is in bulk stucture or superlattice. So i really would appreciate any help or guidance in this problem.

Abaqus + Skin + Shell + too low stresses

Submitted by Quarks on

Hello, 



i am using Abaqus/Standard to simulate the contact of a ball with a flat. Up to this point the simulation is no problem and gives good results compared to the herzian theory. But within my bachelor thesis i have to add a coat (with layers) to the flat (Thickness: 0.004 mm) and analyse the influence of the coat material to the stresses. My idea is to create a skin on the plate and a shell composite section. Then i assign the skin to this section. In the field output i defined the section points to get the stresses over the thickness of the shell.