reply to post by coney
Sounds like a perfect topic for the Mythbusters TV show...
Although they had a go at debunking some of the moon landing hoax theories with some help from NASA, I remember hearing that they wouldn't go
anywhere near the 9/11 conspiracies though (shame... would be an interesting show, eh?)
Any keen model makers out there on ATS?
Creating a scale model of the WTC, recreating the scene of the crime?, page 1
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reply posted on 7-1-2009 @ 05:14 PM by Griff
reply to post by coney
The reason no one has attempted a scaled down model is because the behavior of steel is not a linear relationship. The behavior depends on what is called the "moment of inertia". Moment of Inertia or I is based off of distances to the centriod (neutral axis). So, having a scaled model would not react in the same way as a full scale building.
As an example:
Bending stress is calculated by Mc/I where M equals the bending moment, c equals the distance to the centroid and I is the moment of Inertia which is also calculated from distances to the centroid.
So, distances to the centroid/neutral axis are very important when it comes to structural engineering.
The reason no one has attempted a scaled down model is because the behavior of steel is not a linear relationship. The behavior depends on what is called the "moment of inertia". Moment of Inertia or I is based off of distances to the centriod (neutral axis). So, having a scaled model would not react in the same way as a full scale building.
As an example:
Bending stress is calculated by Mc/I where M equals the bending moment, c equals the distance to the centroid and I is the moment of Inertia which is also calculated from distances to the centroid.
So, distances to the centroid/neutral axis are very important when it comes to structural engineering.
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