In this work experimental results of the mechanical properties of the Vacuum Packed Particles tested under complex load will be presented. Vacuum packed particles it is the structure composed of granular material inside plastomer enveloped. When the pressure inside is equal or higher than atmospheric pressure system behaves similarly to a liquid, otherwise it has properties similar to viscoplastic solid. The physical properties of the structure may be rapidly change by pulling out the pressure from the system. Due to this properties the vacuum packed particles can be treat as a smart material.

Testing of Vacuum Packed Particles under complex loading conditions were not popular in scientific work until now but the data are necessary for the validation process of numerical model. The research proposed in this paper it is a step forward for better understanding of material behavior. The realization of this experiments improved the knowledge of Vacuum Packed Particles.