That is a 20 minute piece of homework you just assigned. Time offsets please.
The bit I scanned through shows cracking due to dumb placement of holes. And that’s on the lid, not the laptop body.
Drilling holes through the edge of load bearing elements is still a classic failure mode for home construction, so I’m disappointed but not surprised. There’s a lot of bad blood about their hinges, and I’m not gonna fight anybody on that. They wanted the thinnest laptops, they got them, but not without consequences.
But part of that thinness was actually pretty smart, and that’s what we are discussing here. Using billet aluminum and CNC fabrication for complex shapes instead of gluing (gluing takes large contact points which means more material). Switching to airframe construction techniques was cooler and probably faster. Carving them out of solid aluminum was innovative mostly because it sounded so crazy. Stir welding sounded positively sober by comparison, even though it was hot shit at the time.
You mean the "unibody" made of two sheets of aluminum glued together in a way that the heat unsticks the adhesive?
https://www.youtube.com/watch?v=t7XSckjRPo0