DOME REVERSAL OF METAL BEVERAGE CONTAINERS

Dome reversal in metal beverage containers refers to the event when th e dome at the bottom of the containers snaps through due to overpressu rization. This paper presents a combined experimental and numerical in vestigation of the problem. The response of the bottom of the containe rs considered is primarily axisymmetric prior to buckling and is chara cterized by a limit pressure instability. Under volume-controlled load ing, collapse in an asymmetric mode occurs shortly after the limit pre ssure is achieved. An axisymmetric model of the problem was sufficient to calculate the limit pressure for the case considered. Results from a nonaxisymmetric model indicated that asymmetric modes became domina nt after the limit pressure had been achieved.