AUTODYN-3D modelling of N Tower collapse (2002)

[Big Les]

I can't find any reference on the forums to the below-linked PDF (from "Century Dynamics Inc"), so thought you guys might be interested. I'm not up enough on the subject these days to know whether the contents are so outdated as to be useless (as I would imagine they might be after 6 years).

http://hsrlab.gatech.edu/AUTODYN/papers/paper142.pdf

 

[Mancman]

Interesting. Never seen this one before.


There's a few errors that jump out at me though.

They give the plane a total weight of 186 tons - probably an overestimate by approx 55 tons. The fuel is given as 94 tons, approx 3 times the probable value.
They have the plane coming in wings level, when it was banked to 25 degrees IIRC.
They also state the engines weigh 31 tons each, which is bizarre.

The impact part is certainly made redundant by later simulations. The collapse analysis looks interesting though, I'll let more qualified people (anyone else) comment on that bit.