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Originally Posted by llarsen Cliff,
While I agree that glass should not be set to bend or flex, I have to vehemently disagree with your statement "it has really no structural integrity of its own"! Glass has quite a lot of strength in compression and not bad in tension.
Glass is used as a stressed, structural member in many, many cases of automotive design, so I am not quite sure where you got this idea from. Inded, in the GT40, it was a structural member of the design.
I ran into the same issue that Vaughn is having with my car when I set the front of the spider ≈¼" to far forward, which brought the roof line down about the same amount that Vaughn is seeing. As Fran pointed out (and I now see that he beat me to the punch on the 'structural member' comment), this was well documented here to warn others of the issues that can arrise from minor misadjustments in the body location.
Lynn |
Hi Lynn,
Yes, agreed, you're exactly correct - there are some structural qualities to glass, for example, it's quite good in compression. And, consequently, can be used in compression to add stiffness in an automobile (or buildings even) in such a manner to good effect. What I'm really focusing upon is not the ability of glass to withstand compression, rather, the ability (or lack thereof) to flex in a lateral sense to fill a gap. Said another way, to take a form materially different than the original mold. Std automotive glass doesn't like to do this too much.
Over enough time, glass can flow but I don't think that timeline fits here. I suggested a method I've seen used to good effect in the past in this situation. I'm sure there's more than one way to skin a cat here however! Sounds like you sorted it out on your car no problem w/o a crack - nice work!