ElMondoHummus
0.25 short of being half-witted
Of equal or even greater significance during this initial impact was the explosion when 90,000 L gallons of jet fuel, comprising nearly 1/3 of the aircraft’s weight, ignited. The ensuing fire was clearly the principal cause of the collapse.
If I'm understanding the exchange correctly, this article is supposed to contradict NIST. It doesn't, really; NIST goes into further detail about what effects the fire had on the structure, and this JOM piece perhaps puts more emphasis on the fire than the damage. But that's to be expected; it was released in 2001, and did not have the benefit of the steel study, video analysis, or other information that NIST did. The fire was, in a sense, the principle cause of the collapse, because it weakened a damaged structure to the point it could not support the upper section, and that ended up being fatal to the entire building. But at the same time, it's not going to have the sort of information or detail that the NIST report would, because it's an early work, not the results of a long study.
As further documentation of the fact that this article is an early work: There's a line in it saying "For a more complete. updated analysis of the World Trade Center towers collapse, read “The Role of Metallurgy in the NIST Investigation of the World Trade Center Towers Collapse” in the December 2007 issue". That clearly demonstrates that even the journal publishing it does not consider this article to be the final word.
Anyway, given the fact that this is an early work - again, it was published in 2001 - why should it be considered more authoritative than the NIST report? It was those authors best effort to that date, but it shouldn't supercede NIST's work. As the link to a later article demonstrates, even the journal agrees with that.