Experimental study of the strength of a conical core in sandwich structures

Information on experimental studies proving the effectiveness of theoretical calculations of discrete conical aggregate parameters is lacking in the scientific literature. This article deals with the experimental study of the strength of a conical core in sandwich structures used in aerospace, building, and machine building industries. The discrete conical aggregate parameters include the elastic modulus, shear modulus, and shear and compression strength. The obtained theoretical and experimental data are compared and analyzed. The study showed that the discrepancy between the theoretical and experimental data is within the permissible limits, which makes it possible to use theoretical calculations when designing sandwich structures. The results of research improve the knowledge about sandwich constructions design.

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