Titanic tourist submersible goes missing with search under way
This appears to be the vessel in question:<p><a href="https://oceangate.com/our-subs/titan-submersible.html" rel="nofollow noreferrer">https://oceangate.com/our-subs/titan-submersible.html</a><p>Pressure hull made from titanium and carbon fiber, capable of diving to 4000m (13,000 ft).<p>I recall that one reason SpaceX switched from carbon fiber to stainless steel pressure vessels (fuel tanks) was the difficulty of detecting structural flaws.<p>Can any engineers comment on whether that task is easier for a vessel exposed to compression (under sea) as opposed to vacuum (space)?<p>How likely is a catastropic failure due to undetected flaws in carbon or composite (carbon + Ti) structures like these?