Skip to main content

research

A comparison of Ansys Shell181 and Solsh190 elements

Submitted by Biswajit Banerjee on
research
ansys
sandwich
composite
plates
shells
shell181
solsh190

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
research
Plasticity
design optimization
Nonlinear FEA
Coupled Process-Performance Simulations

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
Forums
Experimental Mechanics Forum
Choose a channel featured in the header of iMechanica
research

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


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
research
friction
flutter instability

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
research
brillouin zone
superlattice
symmetry
bandstructure

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.

Using engineering to understand biological processes

Submitted by Lee Margetts on
research
All
I'd like to share the following paper with you. I think its an interesting example of where
engineering knowledge can be used to help understand biological processes. We used microscope work and finite element analysis to test a hypothesis as to how a biological structure, crimp, forms in tendons. We'd like to continue this work, so all comments welcome.

Hardness value from Nanoindentation Curve

Submitted by atiwari on
research
nanoindentation

Hi,

Is there anyone aware of the reason why there is a surge in hardness value during the initial stages of penetration in nanoindentation curve. In a plot of hardness vs displacement into surface, I record a high value during the initial stages of the run. I am little confused about the reason.

Thanks,

atul 

Subscribe to research