Thanks a lot for this tip.
I would be curious to know if there is way to figure how many gore vents we should use. Or figure how many we need. I am sure there is a relation to volume.
I will check their website or check their tech support.
Thanks
GC
Thanks,
GC
Hi Guys,
I have a cylindrical-shaped outdoor light fixture. Imagine sealed Dia 8in x 30in tall clear cylinder. light source at the top end.
The fixture is sealed well and is water-resistant. Still, periodically, I observe a moisture patch on the inside closer to the bottom part of the...
Guys,
I need some help with basic statics here. Please see the image attached. While calculating bending force due to loading how can I take advantage of the Style B over Style A.
Since there are 2 welds holding in the style B, it should better design compared to style A. But, how can I alter...
May be its a combination of reasons for failure. Unfortunately I can't post the pictures because I don't own them all. I have asked for permission; hope to post them soon. Here is more information based on few comments here. Application is definitely a corrosive environment (by sea shore)...
Parts were welded with a 1/4 in fillet using GMAW method
Yes, 4043 filler was used.
Although the welded assembly is powder coated, but are installed by a sea shore.
I can understand that there could be corrosion from the wind/mist from the sea, but could it influence more than the fact that...
Is it possible (recommended ?) to weld Aluminum Diecast (A360) & Aluminum Extrusion (6061 T6)? I tried to Google filler recommendation, couldn't find one for this combination.
When tried welding with filler 4043, even tough joint looks good, we noticed severe corrosion & crack overtime.
On the...
Not sure if this is a welding question. But I want to see if the material combination is correct. Is it possible (recommended ?) to weld Aluminum Diecast (A360) & Aluminum Extrusion (6061 T6)?
Even tough joint looks good, we noticed severe corrosion overtime.
On the first had I want to see if...
I agree gruntguru.
Yes, I am doing this to meet a code's requirement. Load test 4 times the final product's weight for 1 hr and see if the lever arm sustain visible distortion and damages.
Unfortunately, can't keep the cylinder pushing 400 lb-force constantly for an hour. compressed air...
Hi Guys,
I have a aluminum cantilever arm that I want to load test for 400 lbs weight. Wanted to hang this weight on the end of the arm to see if this can take the load.
Since I have difficulty with finding the needed weights. Can I instead use a cylinder that can push the end of the arm...
Guys,
I need some help with understanding and using h/t ratio for calulating stresses.
On another thread I had learned that h/t for pole refers to diameter to wall thickness. I tried to understand the following pole drawing calculation.
Pole drawing :
There are 2 segments of pole :
Dia 8 x...
Thank you for helping me understand h/t. I tried applying this to a old calculation on file. Here is what I came up with.
When you have a moment, can you see if I am doing this right, please.
At this point, I am concerned only about h/t. There are 2 segments of pole :
Dia 8 x 0.25" wall x...
Thanks a lot Archie. This is a very old calc on file (1996) that I am trying to breakdown. (Appears it's already broken LOL)
From FP and FB calculation its is clear, that he is doing
Projected Area X wind pressure X Drag
Particularly in FB, like you, I can now see he is trying to take average...
Thanks a lot for explaining the in-kips conversion Archie..
Sounds like the base section modulus calculation is incorrect then. There for, I could quickly create a drawing of the base section near anchor bolts...
Hope this helps ...
Thanks,
GC
Andriver,
I apologize. Here is a marked up sketch that gives the details.
I know that FP & FB are the Force calulation on Pole & Base. Generally I would think its AREA X WIND PRESSURE X Cd. I couldn't figure the where the 4' & 12'+6' came for inches conversion & why?
Thanks,
GC
