Real Engineering: The Questionable Engineering of Oceangate - an in depth analysis of the Oceangate disaster by an expert in composite materials engineering
My "favorite" part was when he read from the (now deleted) Oceangate blog post that effectively said "we don't bother with the mechanical certification process, since very few of the failures that occur in the world are due to mechanical faults".
Really? Could that be because the mechanical certification process actually works?
I feel the need to step in here. Certification != regulation. Regulation means there is a body that can enforce the requirements with monetary or other damaging repercussions. What Oceangate faced were certifications and their decision to side-step them were met with no repercussions except their reputation with those who wouldn't ever want to step inside their sub anyways.
Point is - regulations would have prevented this, but there are none.