pravesh
hello people. i wanted to know how should i proceed with the calculation to be able to determine the maximum wind speed a particular door can resist.

thanks.
___
___
QUOTE (pravesh+Jul 30 2008, 09:12 PM)
hello people. i wanted to know how should i proceed with the calculation to be able to determine the maximum wind speed a particular door can resist.

thanks.

- that post had me crying, and now I've bloody hiccups!

p.s; the noise has woke the kid up!
barakn
QUOTE (pravesh+Jul 30 2008, 03:12 PM)
hello people. i wanted to know how should i proceed with the calculation to be able to determine the maximum wind speed a particular door can resist.

thanks.

We'll need more information. Is the house the door is built in made of straw, sticks, or bricks?
___
QUOTE (pravesh+Jul 30 2008, 09:12 PM)
hello people. i wanted to know how should i proceed with the calculation to be able to determine the maximum wind speed a particular door can resist.

thanks.

What do you mean? An African or European door?

pravesh
QUOTE (barakn+Jul 30 2008, 09:29 PM)
We'll need more information.  Is the house the door is built in made of straw, sticks, or bricks?

bricks.

its an aluminum framed door with glass panes.

the insurance guys wanted to know the max wind speed the door can withstand. :S

n i have no idea how to calculate this. mean is there any standard that is used for wind resistant doors?
___
QUOTE (pravesh+Jul 30 2008, 09:37 PM)
the insurance guys wanted to know the max wind speed the door can withstand.

They're obviously fucked-up gits - I recommend you Molotov-cocktail their premises instantly, and kick the absolute shlt out of anything that escapes.

barakn
QUOTE (pravesh+Jul 30 2008, 03:37 PM)
bricks.

its an aluminum framed door with glass panes.

the insurance guys wanted to know the max wind speed the door can withstand. :S

n i have no idea how to calculate this. mean is there any standard that is used for wind resistant doors?

I'm sorry, I wasn't trying to be helpful. I was trying to turn your thread into a joke about the three little pigs.
excaza
What exactly do you mean by withstand? Do you know what the failure strength of the rest of the components of the door (hinges, locks, etc.) are? Those are more likely to fail before the door itself yields.

You can get a reasonable estimate of the drag force on the door using simple fluid mechanics. The drag coefficient of a flat plate (which approximates a door) is about 1.98.

The equation for drag force is F=(C_d*p*V^2*A)/2
Where C_d is the drag coefficient
p is the density of air
V is the velocity of the air
A is the projected area of the door (in this case, the height*width, thickness isn't a factor for this approximation)

If you solve for V you can have an equation that takes into account all the factors you have, but you need some value for the failure strength of the aluminum door before you can get a maximum velocity.

Hope that helps.
tikay
Wow...I have a hard time believeing that an insurance company expects such information from a client...sort of strange! Nice of you to actually be helpful, excaza. You don't see much of that around here of late.
PhysOrg scientific forums are totally dedicated to science, physics, and technology. Besides topical forums such as nanotechnology, quantum physics, silicon and III-V technology, applied physics, materials, space and others, you can also join our news and publications discussions. We also provide an off-topic forum category. If you need specific help on a scientific problem or have a question related to physics or technology, visit the PhysOrg Forums. Here you’ll find experts from various fields online every day.