Re: airbag safety

[brian whatcott <inet@intellisys.net>]

A rough, rough order of magnitude.
 To stop a 10 lb. head from accelerating at 20g (relatively speaking)
calls for 200 lbs applied over 25 square inches of face - that would be
8psi. The force applied to the lenses might be 10 sq in. @ 8psi = 80 lb

You might wish to evenly apply 80 lb to reading glasses fitted to a 
head dummy.
 (My guess is for a fairly tame result.)  Then if you wished to try
a real test shot, I could probably find you the materials if you would 
publish the results, non-profit?

Regards
Brian


At 23:37 11/29/97 -0500, you wrote:
> With the publicity about airbags, the speed of deployment, the force, etc.
> I have a question:
>       Is the airbag likely to cause injury to people wearing eyeglasses?
> (i realize it would probably be a lot less than thesame person hitting a
> steering wheel or dashboard but I still wonder if anything has been done
> with glasses.  I never saw a crash test dummy with glasses but it might
> have been done.    Anyone have evidence one way or another?
>  Jim Braunsdorf
brian whatcott <inet@intellisys.net>
Altus OK