Physics
Thin sheet: impact and tearing
Follow a projectile, a ductile dent and a tearing metal sheet in slow motion.
Try this
Restart to watch the projectile approach the sheet from the visible side. Blue-to-red colours show membrane stress. The sheet dents, stretches plastically and tears if accumulated tensile strain exceeds the threshold.
The model and its limits
Ductile membrane with compliant stretch constraints, a yield-force limit, accumulated tensile failure and two-way projectile contact. Colours show estimated membrane stress, not a full three-dimensional stress tensor. Bending rigidity, strain-rate hardening and validated ballistic penetration are not modelled.
Equations used in the module
Equations E_k = m v² / 2 σ = F / A ε_p = (L_p - L_0) / L_0
