The load is in the plane of the panel. I am concerned with the bearing stress on the core and the face sheet. The bushing is a thru type and has flanges on the upper and lower surface similar to a delron insert. The bushing will be potted with Hysol 934. I'm most concerned with the face...
No actually I want to mount a 0.75" bushing and pot it into the honeycomb.
I've got all sorts of data on potted inserts, I'd like a way to analyse my particular problem without resorting to testing.
Short of testing has anyone been able to do a sufficient analysis of bearing stress in aluminum honeycomb panels?
I know I need to install a bushing to protect the honeycomb, but how do I show the load that bushing and panel can take is adequate?
SparWeb thanks: The service bulletin, which deals with the longeron cracks, only applies to cracks in the actual splice. Unfortunately this crack is the next rivet forward of the splice. The longeron is the upper starboard and looks to be the most loaded given the moment arm of the tail...
I have an 0.25" edge crack with it's root at the 1/8" rivet in a hat section longeron. The longeron is in the tail boom of a Bell 212. I have convinced myself that a doubler with a single row of rivets down the length of the flange is adequate because the load is distributed only along the...
Hello all,
I have an a/c inspector asking me to include the weight of the wiring for a new system installation. Is this a practice that has ever been followed before? If so where do you chose the moment arm? The center of the wiring run? To me you would just re-weigh the a/c.
Thoughts?
It is actually an STC that is bafflingly vague with regards to its installation detail. They don't outline any procedures to strengthen the area besides showing a doubler and the mounting bolts.
I was just looking for suggestions or previous experiences installing an antenna in fiberglass...
Afternoon,
I am installing a TCAS antenna in the forward cowl of a Bell 206B. The cowl is fibreglass and I am curious to know the standard practice for such an installation. Is an aluminum doubler riveted to the fibreglass sufficient or correct? I have already delt with the ground plane...
