Simulation finds 9/11 fireproofing key

[Psycho4Bud]

INDIANAPOLIS - A computer simulation of the 2001 World Trade Center attacks supports a federal agency's findings that the initial impact from the hijacked airplanes stripped away crucial fireproofing material and that the weakened towers collapsed under their own weight.

The two-year Purdue University study, funded in part by the National Science Foundation, was the first to use 3-D animation to provide visual context to the attacks, said Christoph Hoffmann, a professor of computer science and one of the lead researchers on the project.

"One thing it does point out... is the absolute essential nature of fireproofing steel structures," Hoffmann told The Associated Press. "This is something that wasn't done originally in the World Trade Center when it was built. It wasn't code at that time."

Mete Sozen, a professor of structural engineering and a lead investigator on the simulation, said Purdue researchers hope their work leads to better structural design and building codes to prevent similar collapses.

"In the unfortunate development that we shall have to design structures to survive such events, the methods we have developed and will be developing will be of great use to designers," Sozen said.

The animation, intended in part to help engineers design safer buildings, begins with a map of lower Manhattan as it appeared on Sept. 11, 2001. The video then shows a plane slicing through several stories of the World Trade Center's north tower and follows the disintegrating plane through the interior and out the opposite side.

The report concludes that the weight of the aircraft's fuel, when ignited, produced "a flash flood of flaming liquid" that knocked out a number of structural columns within the building and removed the fireproofing insulation from other support structures, Hoffmann said.

The simulation also found that the airplane's metal skin peeled away shortly after impact and shows how the titanium jet engine shafts flew through the building like bullets.

Ayhan Irfanoglu, a Purdue professor of civil engineering, said half of the building's weight-bearing columns were concentrated at the cores of the towers.

"When that part is wiped out, the structure comes down," Irfanoglu said. "We design structures with some extra capacity to cover some uncertainties, but we never anticipate such heavy demand coming from an aircraft impact. If the columns were distributed, maybe, the fire could not take them out so easily."

A 2005 report following a three-year investigation by the National Institute of Standards and Technology, a federal engineering agency, recommended that cities raise fire standards for skyscrapers and develop new materials that can better protect tall buildings from fire. That analysis did not blame the collapse on the steel or design of the towers, but instead focused on the damage to the fireproofing.

Shyam Sunder, the lead NIST investigator, said he was aware of the Purdue study and called it and his own agency's study "among probably the most prominent analyses that have been conducted in the United States."

The animation is the latest project by the Purdue team to assess the structural damage from the Sept. 11 attacks. The team also studied the impact of the crash into the Pentagon.
Simulation finds 9/11 fireproofing key - Yahoo! News

Purdue University.....pretty credible.

Have a good one!:jointsmile:

Psycho4Bud Reviewed by Psycho4Bud on 06-20-2007. Simulation finds 9/11 fireproofing key INDIANAPOLIS - A computer simulation of the 2001 World Trade Center attacks supports a federal agency's findings that the initial impact from the hijacked airplanes stripped away crucial fireproofing material and that the weakened towers collapsed under their own weight. The two-year Purdue University study, funded in part by the National Science Foundation, was the first to use 3-D animation to provide visual context to the attacks, said Christoph Hoffmann, a professor of computer science Rating: 5

[JeKo]

Damn I never knew the planes actually went into the building and out the other side. This is defiantly gonna debunk some of the 911truth stuff. I dunno i'm still not quite sure what to believe.

[Breukelen advocaat]

INDIANAPOLIS -
The simulation also found that the airplane's metal skin peeled away shortly after impact and shows how the titanium jet engine shafts flew through the building like bullets.

Purdue University.....pretty credible.

Have a good one!:jointsmile:

Damn I never knew the planes actually went into the building and out the other side. This is defiantly gonna debunk some of the 911truth stuff. I dunno i'm still not quite sure what to believe.

They found parts from the jets blocks away in downtown Manhattan. I knew a person that had a business on Murray Street, and an engine landed in the street outside his company's location. It went right through the WTC tower and traveled a quarter to half mile.

[Breukelen advocaat]

Animated simulation video created by the Purdue team:

YouTube - Scientists simulate jet colliding with World Trade Center

[pisshead]

Purdue Simulation Full of Hot Air [align=left] George Washington's Blog
Thursday June 21, 2007[/align]
The newest volley in the disinformation campaign regarding 9/11 is a simulation of the Twin Towers created by Purdue University. As summarized by Raw Story:

The simulation found jet engine shafts from airlines flown into the World Trade Center "flew through the building like bullets," according to an Associated Press vide report.

Flaming jet fuel cascaded through the tower stripping away fireproofing material and causing the building to collapse, the AP video reports.

"The weight of the aircraft's fuel, when ignited, acted like a flash flood of flaming liquid," according to the video.

However, Kevin Ryan has already demonstrated that there was not enough energy from the airplane impacts to have knocked much of the fireproofing off. See also this article.

And very few of the core columns were severed by the planes' impact. And tests by NIST showed that temperatures in the Twin Towers never got hot enough to significantly weaken the structural steel of the 47-column inner core.


Researchers have stated that the Purdue simulation contradicts the observed facts in other ways, and in the next couple of weeks, they will publish their findings.

Moreover, the Purdue simulation still does not address the flies in the ointment which NIST also ignored:

(1) The simulation either fails to include, or inaccurately represents, the 47 core columns holding up each of the Twin Towers.

(2) Most of the jet fuel burned outside the buildings, especially in the case of the South Tower - which produced a glowing orange fireball as the building was struck at an oblique angle. So the simulation could not hold true for the South Tower.

(3) The people who designed the Twin Towers did not think that an airplane plus fire from the jet fuel could bring the buildings down. Indeed, they assumed that "all the fuel (from the airplane) would dump into the building", and yet assumed "The building structure would still be there." Since most of the fuel (especially with the South Tower) exploded outside of the buildings, shouldn't they "still be there"?

(4) Even if the planes and fire had initiated a collapse sequence, why did the towers totally collapse, when no modern steel-framed building has ever before completely collapsed due to fire?

(5) Why did they collapse at virtually free-fall speed? And why did WTC7 -- which wasn't even hit by a plane -- totally collapse at free-fall speed later that same day?

(6) How could the buildings have fallen at near free-fall speed, indicating very little resistance, and yet produce tremendous pulverization of concrete, which indicates great resistance?

(7) No one can explain why "steel columns in building 7 were "PARTLY EVAPORATED in extraordinarily high temperatures" (pay-per-view). Absent controlled demolition, how could such temperatures have been generated by jet fuel or diesel?

As if that's not enough, Kevin Ryan pointed out to me today by email that the Purdue simulation contradicts many aspects of NIST's findings:

"1. Were columns on the south face of WTC severed by aircraft impact? NIST says maybe one, but Purdue now suggests several. NCSTAR1, p. 22-23.
2. Was there any jet fuel in AA11's center fule tank? NIST says no, but Purdue now says yes, it was completely full. NCTSAR1-5A, p liii, lviii.
3. How did the fieproofing get "widely dislodged"? NIST suggests the aircraft debris turned into shotgun blasts to affect this. Purdue now suggests the jet fuel did it. Thanks to Purdue for invalidating NIST's work. NCSTAR1, p 119."

In other words, not only does the Purdue simulation contain many of the same errors as the NIST reports, but, as if that's not bad enough, it stretches the truth beyond even what NIST itself has done. Moreover, as pointed out by the blog Truth Or Lies:

"The following statement was used in the Purdue simulation: 'The weight of the aircraft's fuel, when ignited, acted like a flash flood of flaming liquid.' This is a direct contradiction of the FEMA report (which can be viewed HERE) which stated: 'despite the huge fireballs caused by the two planes crashing into the WTC towers each with 10,000 gallons of jet fuel, the fireballs did not explode or create a shock wave that would have resulted in structural damage.'â?�

As Crockett L. Grabbe, PhD, research scientist and visiting scholar, department of physics and astronomy, university of Iowa 1980, and former researcher at Naval Research Laboratory put it:

â??Many may conclude that the building structure of the World Trade Center twin towers was poorly designed with fire retardants that the heat from the airliner explosions within an hour caused catastrophic destruction of the south tower, and in less than 2 hours the north tower. However, the evidence overwhelmingly supports a different conclusion: this collapse was in fact caused by explosive devices planted well in advance."

Indeed, numerous scientists, engineers and demolition experts have said the official version of the destruction of the World Trade Centers is impossible.

[Breukelen advocaat]

Here's pictures of the engine that landed on Murray Steet, blocks from the WTC. Of course, there is a faction of conspiracy theorists that claim this engine was not the type used in the Boeings that crashed into the towers.

[eg420ne]

Here's pictures of the engine that landed on Murray Steet, blocks from the WTC. Of course, there is a faction of conspiracy theorists that claim this engine was not the type used in the Boeings that crashed into the towers.

Thats the first i heard of it..............

& Building 7 needs a plane

[pisshead]

New 9/11 Study Has Direct Links To Government, Pentagon Black Ops
"Independent" study financed by Feds Steve Watson
Prison Planet
Friday, June 22, 2007
A newly released Purdue University animation showing how fire caused the collapse of the World Trade Center towers on 9/11 claims to be independent but in reality has been federally funded and was conducted by individuals with direct links to the Pentagon and the White House.
Earlier this week we covered the news that the new study roughly correlates with the findings of the 2005 National Institute of Standards and Technology (NIST) report and supports the official line that the airplanes stripped away crucial fireproofing material and that the weakened towers collapsed under their own weight.
While the New York Times today lauds the study as "a counterpoint to the conspiracy theories promulgated by such outspoken figures as Rosie Oâ??Donnell", Prisonplanet.com has actually done some research into the origins of the study.
In addition to the inerrant flaws and conflicts we pointed out in our previous article, it has now come to light that the so called "independent" structural engineers behind the study are anything but.
The Study was funded by the National Science Foundation (NSF), a federal agency created by Congress in 1950 "to promote the progress of science; to advance the national health, prosperity, and welfare; to secure the national defenseâ?¦".

The board of the NSF was appointed by George W. Bush and confirmed by the United States Senate. Its director, Dr. Arden L. Bement Jr, has worked for the Department of defense, where he was under secretary for research and engineering, and DARPA (the Defense Advanced Research Projects Agency), which is responsible for the development of new technology for use by the military and famed for its black op projects and offshoot offices.
Last year the Bush Administration doubled the NSF's budget to $6.02 billion.
At the time Arden L. Bement, Jr. stated:
"This is a great day for NSF, and that means it's a great day for the nation, there has been a lot of rhetoric about doubling the NSF budget, but now the Administration is behind it. The FY 2007 Budget Request is the first installment. We are grateful to the Administration for its recognition and leadership,"


In addition it turns out that structural engineer Mete Sozen, the lead investigator in the Purdue study, was also on the American Society of Civil Engineers research team that confirmed the government's story about the OKC bombing in 1995, despite the huge amounts of inconsistencies and conflicting testimony.
Coincidence?
From the ASCE web site

Mete A. Sozen, Ph.D., S.E.
Kettlehut Distinguished Professor of Structural Engineering, Purdue University
Specialty: Behavior of reinforced-concrete structures
Dr. Sozen is currently the Kettlehut Distinguished Professor of Structural Engineering at Purdue University in West Lafayette, Ind. Prior to joining Purdue in 1994, Dr. Sozen was a professor of civil engineering at the University of Illinois for over 35 years. Dr. Sozen also served on the ASCE team that studied the Murrah Federal Office Building collapse.

[align=left] So while it claims to be independent the study was in fact funded by the government and carried out by long time government hired hands. The study clearly set out not to attempt to discover anything new but to prove the preconceived official fire theory.[/align]
[align=left]Again this underscores the fact that a truly independent investigation into 9/11 is the only way the mountains of evidence pointing towards a controlled demolition will even be considered.[/align]

[pisshead]

Thats the first i heard of it..............

& Building 7 needs a plane

yes, there is a faction of official version conspiracy theorists that think a plane hit building 7...there's also a faction that doesn't even know what building 7 is or that building 7 was the 3rd building to collapse on that day...

with such ignorance, is it any surprise we, me included, were sold on a freedom hating muslim conspiracy theory...

[420izzle]

Nice work Pisshead. You silenced and debunked the debunkers. Easy to do with all the evidence! C'mon people.....WAKE UP!
WTC7.net