"I think the guy who ran this was actually making big mistakes, and was overconfident in his calculations. Cracks would have formed,” he said, speaking about OceanGate CEO, Stockton Rush, who died on the expedition.
"They might not have been seen at first, but they start to become a little bit bigger each time before becoming a critical crack and failing."
Offering up another theory, Graham-Jones said: "This could have been an electrical catastrophe. It could have been corrosion, it could have been a fire. Any leakage of water coming through to the electrics could lead to failure as well.
"Some of the pipes and parts that lead outside could have begun to leak. If you have a wire going outside, then those wires going through land could actually start to leak. They could have corroded."
Another factor could have been cracks in critical parts of the craft.
“The crack could be brittle, or ductile, and related to fatigue and de-lamination. By scanning under an electron microscope, you can see the fatigue and confirm the speed and direction of the cracks."
"Has there been excessive heating, or corrosion or buckling? Distortion of joints and fittings?”
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