The structural failure of a commercial aquarium's glass cover revealed a critical issue: the rupture of stainless steel profiles due to flexural-torsional buckling under asymmetric hail load. The incident, documented through a 3D pipeline combining photogrammetry with RealityCapture and finite element analysis in Ansys, exposed a weakness in stress distribution under localized weather events.
3D Pipeline: from point cloud to finite element analysis 🛠️
The process began with capturing the scene using RealityCapture, generating a precise point cloud of the collapsed cover and glass fragments. This mesh was imported into Ansys to simulate the asymmetric hail load. The results showed that the stainless steel profiles, designed for uniform loads, failed due to flexural-torsional buckling at the supports. The model validated that the hail impact angle and localized ice accumulation generated torsional moments not anticipated in the initial static calculation.
The hail that didn't warn and the steel that said enough 🌩️
It turns out that stainless steel, that material promising eternal resistance, surrendered to a handful of ice stones. The designers calculated for a uniform snowfall, but nature has a sense of humor and opted for an asymmetric downpour. Now it's time to review whether the next aquarium will withstand a marble storm or if they'll need to install a canopy. Meanwhile, the fish look at the sky with distrust.