Abstract
This paper describes shape design optimization of lid (end) with small diameter for aluminum cans. Weight reduction is considered subject to buckling strength under internal pressure and geometrical constraints for fabrication. Seven geometrical design parameters of end shape are selected as design variables, and the orthogonal array table L_<27> of design of experiment is adopted to construct the response surfaces of buckling strength Q and clearance H after deformation under pressure. The end shapes assigned by the design of experiment are descritized into three-node axisymmetric shell elements, and the elasto-plastic deformation analyses are performed by the FEM software 'MARC'. The design parameters are optimized by Design Optimization Tools(DOT). The result does not satisfy design restriction well, however it is a big first step for the future development of small end.
