Cellular metallic materials (CMM) consists of a filigree structure of cell walls and/or struts. From a macroscopic point of view, CMM behave differently under mechanical stress than dense metallic materials. The application of test standards for dense metallic materials, such as DIN 50106 for compression tests, does not usually lead to reliable material parameters that are suitable as input variables for component simulation. For this reason, DIN 50134 "Compression test on cellular metallic materials" has been reviewed and adapted to the behaviour of highly porous metals.

CMM are increasingly being used in lightweight construction in areas where ductile behaviour, electrical or thermal conductivity are required or where plastics cannot be used due to environmental conditions (e.g. temperature, chemicals) or fire protection reasons. In these areas, they are mainly used as the core layer of sandwich structures. Here too, the main input variables for component simulation are required. DIN 53293:1982 "Testing of core composites - bending test", for example, is available for their determination. Using resonance frequency damping analysis, the modulus of elasticity and shear modulus can be determined non-destructively. The mechanical testing of CMM will be explained in the presentation using application examples and concluded with initial findings on the fatigue of CMM.