Modeling of packaging behavior of metallic closed-cells foam under compressive loading

Estimation of behavior of metal closed-cell foams under compressive loading is a complex task and must take into account buckling problem, plastic deformation of the cell walls, self-contact problem, damage accumulation, arising cracks and their growth, etc. Full map of the problem is such complicated,  that its direct solution is very expensive for application in the industry.

In the work in proposed simplified scheme for estimation of arising in the metallic closed-cell foams strain localizations and packaged domains of cells. The work is divided on two main parts. First part is devoted to the nucleation problem of strain localizations and based on the solution of the linear buckling problemfor closed-cell metallic foammodeled bymeans of Voronoi tessellation. In the second part is discussed themodeling of packaging propagation in themetallic closed-cell foams. Modeling is based on the phase-field approach. Verification of proposed estimation scheme is performed on base the of experimental data for aluminumclosed-cell foamAlulight®.