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CJL
04-19-2006, 04:06 PM
How would I calculate displacement for this kind of brace? It would be 12"H x 17"W x .75"D and each cutout would be 3"x3".

http://img231.imageshack.us/img231/9499/brace6wo.png (http://imageshack.us)

ramos
04-19-2006, 04:08 PM
I get .07 cuft per brace :)

edit -oops you asked how :)

17 x 12 x .75 = 153 /1728 = 0.08cuft if the brace was solid

3 x 3 x .75 = 6.75 * 4 = 27 /1728 = 0.01cuft holes in the brace

so

0.08 - 0.01 = 0.07cuft :)

mikey060
04-19-2006, 04:08 PM
find out what the whole peice without the square cutouts would displace, and then minus the cutout displacement from that number

CJL
04-19-2006, 04:15 PM
I get .07 cuft per brace :)

edit -oops you asked how :)

17 x 12 x .75 = 153 /1728 = 0.08cuft if the brace was solid

3 x 3 x .75 = 6.75 * 4 = 27 /1728 = 0.01cuft holes in the brace

so

0.08 - 0.01 = 0.07cuft :)

Thanks alot man does that type of brace have a certain name?

ramos
04-19-2006, 04:22 PM
I have heard them referred to as window braces. But who knows :)

ssj2xxgotenxx
04-19-2006, 05:24 PM
http://i50.photobucket.com/albums/f340/ssj2xxgotenxx/SpeakerBoXXX/88047.jpg

FTW!