Ways to join thin components in a secure way and quick to unfasten

Hi guys/gals,

I am looking for ways to securely fasten components together for aerospace applications and in ways that can be quickly unfastened if replacement is required.

I have two main components, (1) a cylindrical (non-circular cross-section) lip in front of (2) a cylindrical barrel (non-circular as well). Two additional components attach at the (3) top and (4) bottom that provide structural support and load mitigation.

All are connected at the interface between the lip and the barrel, though there is space limitation at the higher half, so bolt joining (1) with (3) is not possible. Also, bonding (1)-(3) with adhesives is not preferred. Preferably, the joint should be fastened-unfastened at one (the bottom) location. The components are very thin as well.

I am looking forward to any answer.

Thanks,
T. S.

Welcome to PF.

1. How thin is very thin?
2. What sort of dimensions?
3. What is the operating temperature range?
4. What is the material, metal, plastic or composite?
5. Is there a pressure differential, or it this a structural surface?

It would really help if you could attach a sketch or image that shows the four components assembled together.

Does it have to hold pressure, or just the shape ??
Tangential, but I was faced with re-assembling under-sink back-board in-situ after repairing waste pipe where it ran through wall.

Said pipe gnawed by rats within wall would you believe ?? Took ~15 mins to replace the push-fit pipe, many miserable months to dry out then re-instate the rest...

For the panel's thick bracing, I could use threaded inserts, mending plates with 4x2 holes and allen-keyed bolts. Inserts placed before sawing. For the thin panel, I used metal 'winged' inserts that, spread by recommended tool, gripped panel and provided a threaded hard-point. "Jack Nuts - Screw Anchor - Spider Nut - Hollow Wall Sleeve - Steel, 25, M5"
Then simpler mending plates and more allen-keyed bolts to stitch seam...
See pic collage...