soniumShowcase · solid
Thin-Walled Tube Crush
An aluminium tube is crushed against a rigid wall by prescribed end-shortening and folds progressively. Colour is membrane strain intensity; plastic hinges form where the folds localise.
Q4 crash shells (Belytschko–Tsay with hourglass control) with J2
plasticity — the fold pattern is the verification: progressive buckling
with the right hinge spacing means the shell membrane/bending split and
the plasticity update agree. Regenerate with
just website-demos crush.