Tug...
WWII was 'won' at a terrible price. The captured technology [documents/knowledge] and experienced-personnel... scientists, engineers, techs, etc [aero, rocket, weapons, etc]... were never going to be simply discarded... 'because' of being a Nazi rank-and-file party member, ONLY... unless...
/NOTE/ Before I give You the technical answer... here is a practical observation.
Have your vendor check the material certification-paperwork and the mil-printed-markings on the raw material. Often a OEM will manufacture a product to a high standard specification then cross-qualify all other...
Star Reach...
We are engineers and You're discussion is deeply-hypothetical physics... hence you need to redirect this to a 'theoretical physics websites and forums', thus...
https://www.quora.com/What-are-the-best-physics-forums
https://www.physicsforums.com/...
I re-read Your statements... and several subtle elements finally made me curious/concerned... with Your presentation... Soooo I have to ask...
Are You testing with gaseous/pressurized... OR LIQUID... helium?
Gaseous testing under pressure at most useful temperatures 'is straight-forward'...
https://www.space.com/space-exploration/human-spaceflight/id-get-on-in-a-heartbeat-starliner-astronauts-would-fly-on-boeing-spacecraft-again-despite-malfunctions-video
I guess all the neigh-sayers about Boeing Starliner... do NOT include the test-flight crew... Williams and Wilmore.
NACE Corrosion Engineer’s Reference Book, 4th Edition
https://www.amazon.com/NACE-Corrosion-Engineers-Reference-Book/dp/1575903210
Books like this may be available for reference thru local libraries or corporate libraries... but 'free downloads' probably NOT.
TUG... Musk wants to de-orbit the ISS... to get it out of the way... and place his station in-orbit, instead. AND then simply by-pass the return-to-the-moon to focus on man-to-Mars.. his objective. To do all this NASA simply has to be taken apart and placed in the trash-can of history
NOTE that...
We stand-on... and all progress of our world builds-on... the shoulders and 'workings of... the giants who came before us... and most of us are willing/humble enough to admit it.
AIAA has many related/technical articles/documents on most elements of 'wind turbine design'. Seriously.
OH... and there are many tech books on wind turbine design...
Related...
NASA-STD-8719.28 WIND TUNNEL MODEL SYSTEMS CRITERIA
This is a 'complex' question wrapped-up in a KIS presentation. 'Lots to know... before You go.' Making aerospace grade fasteners is a commitment.
Exactly what 'high quality' grade fasteners are you currently making... dimensional controls, alloys, metallurgy, finishes, testing, fab methods...
Explain to us WHAT you are proof-pressure testing with Helium... and what kind of pressure-loss sensor you are using...
Your question is a bit 'off'... perhaps You mean: "if you are supposed to pressure test with helium... and all of the pressure test 'plumbing/valves' are designed for...
What is the min/max operating temperatures at the dissimilar metals contact points.
Inconel and aluminums have grossly different expansion/contractions coefficients... and service temperatures
RE: SAE AIR809 Metal Dimensional Change with Temperature
Run some calculations and see how closely...
Perhaps... this is a bit more realistic... for high speed/interstellar flight...
The 100 Year Journey to Proxima Centauri B (Sci-Fi Documentary)...
The First 10,000 Days on Proxima Centauri B (Sci-Fi Documentary)
Unmanned [optionally manned?] Fighter drones are coming.
Current planning would place a manned fighter at the core of a 'team' of IA driven unmanned air-to-air, ground attack, SAM suppression, deep interdiction, etc drones. The majority would be considered force-multipliers for continuous high...
