this post was submitted on 26 Jun 2023
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New evidence strongly suggests that OceanGate's submersible, which imploded and killed all passengers on its way to the Titanic wreck, was unfit for the journey. The CEO, Stockton Rush, bought discounted carbon fiber past its shelf life from Boeing, which experts say is a terrible choice for a deep-sea vessel. This likely played a role in the submersible's tragic demise.

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[–] swope@kbin.social 20 points 2 years ago (18 children)

From my limited experience with laying up carbon fiber, I know there's the raw carbon fiber cloth and there's liquid resin that you spread into the cloth. It's also very common to see carbon fiber cloth that is "pre-impregnated" - the resin is already applied to the cloth. Everyone calls this "pre-preg".

So I've seen a lot of folks online scratching their heads about "how can carbon expire?" or "my carbon fiber (bike/boat/etc.) is N-years old, is it expired?" but I think the most likely thing to expire is the resin. Once the resin is cured it is much more stable.

Any materials folks or structures engineers who want step in and correct me, please do.

[–] Jediotty@beehaw.org 15 points 2 years ago (8 children)

Also most bikes aren't under enough pressure to cause them to implode

[–] CynAq@kbin.social 2 points 2 years ago

<insert yo mama joke here>

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