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Effect of the Thermosensitivity and Reinforcement Structure on the Load-Carrying Capacity of Metal-Composite Gas-Turbine Disks

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Abstract

The direct problem of calculating three-layered reinforced rotating disks with account of thermosensitivity of their substructural elements is formulated. Based on this problem and a strength criterion for the substructural elements of the disk, the inverse problem on determining its load-carrying capacity at a given profile of the disk and reinforcement structure of the load-carrying layer is stated. The calculation results for a magnesium-steel disk with a fixed geometry and different reinforcement structures are presented. It is shown that the thermosensitivity of the substructural elements lowers considerably the load-carrying capacity at elevated temperatures. The isotropic steel and quasi-isotropic reinforced disks, most often used in practice, are inefficient compared with spirally and radially reinforced ones; for magnesium-steel disks, the best are the structures with a radial and radially circumferential reinforcement.

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Authors and Affiliations

  1. Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia

    Yu. V. Nemirovskii & A. P. Yankovskii

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  1. Yu. V. Nemirovskii
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  2. A. P. Yankovskii
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Nemirovskii, Y.V., Yankovskii, A.P. Effect of the Thermosensitivity and Reinforcement Structure on the Load-Carrying Capacity of Metal-Composite Gas-Turbine Disks. Mechanics of Composite Materials 36, 481–491 (2000). https://doi.org/10.1023/A:1006710717295

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