impactfatigueinducedcan
Impactfatigueinducedcan is a term used in failure analysis to describe a metal container that fails due to a combination of impact loading and cyclic fatigue. It commonly applies to aluminum or steel cans used for beverages, aerosols, or other pressurized contents, where repeated or severe impacts create stress concentrations that promote crack initiation and growth in thin-walled sections.
Mechanism: When a can is dented or dropped, residual stresses accumulate at the dent edge and at
Materials and testing: Most impact-fatigue failures are reported in thin-walled aluminum beverage cans and steel tins,
Prevention and design: Reducing risk involves improving dent resistance through thicker walls, larger radii at corners,