It is really a long time since my last post about research stuff, emmh?
This pix is generated using the shear-strain coloring in atomeye, and it shows the cross section of a Ni3Al column in compression test. From it you can easily tell that the most highly stressed area is actully the surface.
February 15, 2006
Atomeye generated coloring file
December 21, 2005
AtomEye: the software that those MIT guys use to plot atom
The day before yesterday, I had a very nice talk with Dr. Yunzhi Wang
from Ohio State University. Today I search for his homepage and find
another person in his department who interests me a lot.
http://www.mse.eng.ohio-state.edu/fac_staff/faculty/li/index.htmlx
Ju Li the assistant professor from MIT, who is the author of AtomEye, a
molecular modeling software. This software is exactly what those mit
guys used in their famous demonstration of dislocation multiplication.
This software is extremely small, about 3.5MB. And it is relies greatly
on command line. Luckily there is a well-written user manual for it on
the website.
http://164.107.79.177/Archive/Graphics/A/
November 28, 2005
A PyMol generated gif file
This is the gif file showing how dislocation would grow in a
twenty-Angstrom radius Ni3Al sample when compressed. It is quite
impressive, beautifully shows how dislocations and slip planes grow and
interact with each other.
I have tried to use Protein Explorer before turning to PyMol. PE, as I
think, is too much tricky to manipulate and very picky on browser as
well. But all the things in PyMol are easy, you simply click some thing,
almost everything can be done! I do not know why there is even less
document on PyMol on the net than rasmol and PE. Perhaps that is due to
PyMol is a young software, hmmm?
Python rocks, sourceforge rocks!
November 23, 2005
Coordinate number method
This is picture is plotted completely at the same step as last one. This
time I use the coordinate number method to plot it. It is beautiful as I
have imagined.
November 22, 2005
What the hell is it? Some kind of visual maze?
My supervisor ask me to plot out the morphology of the dislocation in
the compression simulation of Ni3Al. I got this when trying that using
relative displacement method. It shows the cross section area, and looks
like a maze, isn’t it? Perhaps I should also try potential energy and
coordinate number, which might give me different image. Hmmm…
I think I am much nearer to the key.
