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Reply #157: Consider this [View All]

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Home » Discuss » Topic Forums » September 11 Donate to DU
Martensitic Madness Donating Member (1 posts) Send PM | Profile | Ignore Fri Jul-07-06 01:38 PM
Response to Reply #109
157. Consider this
I have been a ferrous metallurgist for 20 years. What we have here is a technical joke.

First off, there are many types of steel, with many types of inherent strengths. As I understand the failure in the WTC, the bolts failed which held up the individual floors.

I'll keep my logic simple so the non-technical types here have some chance of following along. Bolts are a heat treated component in the building's system of construction and support. Heat treating drastically increases the strength of the steel. Subsequent heating (by say... burning jet fuel) "undoes" the heat treatment, drastically reducing the strength by upwards of 50-80%.

Chicken wire is not a heat treated steel component. So heating of chicken wire causes a modest loss in strength of 5-20%.

Putting all the other scaling issues aside (which are very valid), this experiment does not even begin to duplicate the inherent loss of the DESIGN strength of the bolts. Steel girders and beams are not heat treated components and would probably behave more like the chicken wire if they were not bolted together.

This "experiment" would be more accurate if each strand of wire was connected to another strand of wire using wax or bubble gum, as these materials would loose most their strength from the heat and your little chicken coop would have collapsed readily.

From a technical standpoint, this experiment proves that if you have a wild fire on your farm, your chickens will probably burn to death inside the chicken coop.

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