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scientifically based animation of 9/11 June 25, 2007

Posted by tkcollier in News, Science & Technology, Streamingvideo, Video.
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Purdue creates scientifically based animation of 9/11 attack
The animation is the latest in a series of projects by the Purdue team that arose after 9/11 to determine the structural damage that occurs when an airplane collides with a building.

“The aircraft moved through the building as if it were a hot and fast lava flow,” Sozen says. “Consequently, much of the fireproofing insulation was ripped off the structure. Even if all of the columns and girders had survived the impact – an unlikely event – the structure would fail as the result of a buckling of the columns. The heat from an ordinary office fire would suffice to soften and weaken the unprotected steel. Evaluation of the effects of the fire on the core column structure, with the insulation removed by the impact, showed that collapse would follow whatever the number of columns cut at the time of the impact.

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