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I'm no Airbus champion, but isn't breaking a wing a normal part of the certification process?
(bonus question: why can you pour water on steel but not pour steel on water??)
After completing “limit load†tests (ie the maximum loads likely to experienced by the aircraft during normal service), progressively greater loads have been applied to the specimen towards the required 1.5 times the limit load. Engineers develop finite element models (FEM) to calculate the load requirements.
“The failure occurred last Tuesday between 1.45 and 1.5 times the limit load at a point between the inboard and outboard engines,†says Airbus executive vice president engineering Alain Garcia. “This is within 3% of the 1.5 target, which shows the accuracy of the FEM.â€Â He adds that the ultimate load trial is an “extremely severe test during which a wing deflection of 7.4m (24.3ft) was recordedâ€.