Aus einem anderen Forum hier mein Post zum Thema:
Ich hatte dahingehend recherchiert, ob Astraneh-ASL eine Aussagekräftige "Unabhängige Studie" zum Zusammensturz der WTC-Türme angefertigt hat. In einer Diskussion kam ich ein bischen ins Hintertreffen als mir vorgehalten wurde das die Skeptiker Astraneh-ASL ignorieren. Speziell ging es um ad hominem Argumente gegen Richard Gage der in "Blueprint for truth" behauptet das es keine unabhängige Untersuchung gab.
Verschiedene Behauptungen wurden aufgestellt:
- Astraneh hatte Zugang zu den Blueprints des WTC
- Er hatte freien Zugang zu Ground Zero
- Er hat niemals von geschmolzenem Stahl gesprochen
- Sein Standpunkt ist Entgegengesetzt dem von NIST
- etc. pp
in den Qullen die ich eingesehen habe zeigt sich als erstes das Astraneh für seine Studie keine Blueprints von offizieller Seite bekommen hat und dieses auch angeprangert:
Before the Committee on Science of the U.S. House of Representatives
March 6, 2002 Hearing on
"Learning from 9/11: Understanding the Collapse of the World Trade Center"
Zitat
I wish I had more time to inspect steel structure and save more pieces before the steel was recycled. However, given the fact that other teams such as NIST, SEAONY and FEMA-BPAT have also done inspection and have collected the perishable data, it seems to me that collectively we may have been able to collect sufficient data. The main impediments to my work were and still are:
1. Not having a copy of the engineering drawings and design and construction documents.
2. Not having copies of the photographs and videotapes that various agencies might have taken during and immediately after the collapse.
Zitat
Has the confidential nature of the FEMA's Building Performance Assessment Team investigation made it more difficult to gain access to materials that might be useful, such as private videotapes?
I have not been provided with the information made available to the FEMA Building Performance Assessment Team. This includes, videotapes and photographs taken on 9/11and the following days and copies of the engineering drawings. At this time, having the videotapes, photographs and copies of the drawings not only is useful, but also is essential in enabling us to conduct any analysis of the collapse and to formulate conclusions from our effort.
www.thewebfairy.com/nerdcities/WTC/astaneh-wtc.htm
Eine Woche nach dem 11. September hatte Astraneh Zugang zu Ground Zero. Ob es eine Touristen-Führung war oder ob er tatsächlich freien Zugang hatte kommt nicht so ganz aus den von mir eingesehen Quellen heraus vieleicht hat jemand von euch noch was zu dem Thema.
Von "geschmolzenem Stahl" hat er in Unterschiedlichen Interviews gesprochen:
Scholars Work to Rebuild the World Trade Center Virtually
By JEFFREY R. YOUNG
December 7, 2001
Zitat
"If you remember the Salvador Dalí paintings with the clocks that are kind of melted -- it's kind of like that. That could only happen if you get steel yellow hot or white hot -- perhaps around 2,000 degrees."
chronicle.com/free/v48/i15/15a02701.htm
Collapse of Overpass in California Becomes Lesson in Construction
May 10, 2007
Zitat
ABOLHASSAN ASTANEH: Here, it most likely reached about 1,000 to 1,500 degrees. And that is enough to collapse them, so they collapsed. So the word "melting" should not be used for girders, because there was no melting of girders. I saw melting of girders in World Trade Center.
www.pbs.org/newshour/bb/science/jan-june07/overpass_05-10.html
The NIST WTC 7 Report: Bush Science reaches its peak
Kevin R. Ryan
September 10, 2008
Zitat von: Kevin Ryan
...The witnesses to molten metal also included University of California, Berkeley engineering professor Abolhassan Astaneh-Asl, who was the first scientist given access to the steel at ground zero. Dr. Astaneh-Asl referred to the WTC steel he found as "kind of melted."11 Years later, when asked again about his experience he clarified, "I saw melting of girders in World Trade Center."12...
www.911review.com/articles/ryan/NIST_WTC7.html#11
Die Präsentation vor dem Committee on Science of the U.S. House of Representatives beinhaltete folgenden versuchsaufbau:
Steel Structure Nonlinear FEA Simulation Provides Insight into World Trade Center Collapse.
Zitat
He was one of five expert witnesses invited to testify before the Committee on Science of the U.S. House of Representatives at the March 6, 2002 hearing. Learning from 9/11 - Understanding the Collapse of the World Trade Center. Dr. Astaneh-Asl's presentation included a movie of a simulated crash of a passenger aircraft onto a generic steel structure created with MSC.Dytran and MSC.Marc by the MSC.Software nonlinear group.
Zitat
Because of the limited time available to provide an initial analysis, a search of MSC.Software's past projects turned up the public domain geometry of a Boeing 747 with partially meshed wings and engines. MSC.Patran was used to add the fuselage and stiffeners, tail section, flooring and other major components, completing the finite element model of the Boeing 747. Concentrated masses were added in specific locations along the aircraft to represent the cargo, passenger weight distribution and fuel. The total weight of the Boeing 747 was 304,000 kg (Comment. 304,000 kg = 670,200 lb. The maximum takeoff weight of a Boeing 747 is 875,000 lb. The maximum takeoff weight of a Boeing 767 is 395,000 lb).
Zitat
A full mockup of the building was unnecessary, because of time limitations and the fact that the actual structural data had not yet been made available (Comment. Apparently, Astaneh-Asl still does not have the plans of the WTC. Wouldn't it would be reasonable to give your researchers the basic data needed for their investigations). Therefore, a generic six-story steel structure was constructed with tubular beams and columns. The gravity loading was applied to the entire structure and the dead weight of the building was added through the floorings located on the top-two and bottom-two floors of the structure. Floors were not added to the impact area, which facilitated the study of the failure pattern of both the aircraft and the beam-column connections. The foundation of the building was rigidly fixed. Approximately 61,000 elements were used to construct the entire model of the building and Boeing 747.
Zitat
The Boeing 747 was run into a centralized location of the building exterior between the 3rd and 4th floors at 200 m/sec (about 450 mph) at zero degree yaw and pitch angles. When the aircraft crashed into the WTC, the initial impact to the building resulted in massive structural failure and deterioration to both building and the aircraft. Then a fire explosion (Comment concerning the exterior fireballs. Although dramatic, these fireballs did not explode or generate a shock wave. If an explosion or detonation had occurred, the expansion of the burning gasses would have taken place in microseconds, not the 2 seconds observed. Therefore, although there were some overpressures, it is unlikely that the fireballs, being external to the buildings, would have resulted in significant structural damage.)
Zitat
As the Boeing 747 deteriorated, it dispersed approximately 10,000 gallons of fuel (Comment. This quantity of fuel is quite small considering that a Boeing 747 has a fuel capacity of 57,285 gallons.) inside the WTC, (allowing for fuel consumption during the flight). This was a massive amount of fuel and during the investigation of the WTC, fuel was even found in the elevator shafts and on the first floor. Based on the impact simulation created in MSC.Dytran, a heat transfer and thermal stress analysis was performed in MSC.Marc.
www.thewebfairy.com/nerdcities/WTC/wtc-microsoft.htm
So weit bin ich bisher...
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