this post was submitted on 28 Jun 2023
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[–] axtualdave 15 points 1 year ago (11 children)

By all accounts, carbon fiber doesn't "strain". It does its thing great right up until it fails catastrophically.

[–] guyman 2 points 1 year ago (5 children)

Was the hull made purely of carbon fiber?

[–] wazoobonkerbrain 1 points 1 year ago (4 children)

The hull consisted of a carbon fiber tube with titanium endcaps, one of which served as a door (which could not be opened from inside) and contained the porthole.

[–] Sleepy 5 points 1 year ago (3 children)

I watched this that shows the making of the hull. So it seems that it's carbon fibre over a metal cylinder. I don't know if that cylinder is titanium but it doesn't seem like the hull was pure carbon fibre. That cylinder is nowhere near thick enough for anything but the base for the carbon fibre though so it's not like it would offer anything but squish in an emergency. But I did find this very interesting (and terrifying somehow):

https://youtu.be/4O5F4ZVlIac?t=660

[–] wazoobonkerbrain 1 points 1 year ago

The tube section was carbon fiber only, no metal. The endcaps were titanium. Many thanks for the link, I will take a look!

[–] wazoobonkerbrain 1 points 1 year ago

Hmmm.... still not sure....

The Titan Tragedy—A Deep Dive Into Carbon Fiber, Used for the First Time in a Submersible

OceanGate shows a metal tube around which the carbon fiber filament is wound but it may be a mandril removed after hardening of the composite.

[–] wazoobonkerbrain 0 points 1 year ago

I'll be damned, you're right, the carbon fiber was wound around a metal tube. My bad.

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