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A design-experiment study of nonlinear properties of coal-plastic

  • Experimental Machine Mechanics, Diagnostics, and Testing
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Abstract

A design-experiment method of estimating and forecasting nonlinear deformation of unidirectional and layered coal-plastic with different angles of layers placed under quasi-static loading is proposed. The elastic properties of a layer were determined on the basis of test results of crossing-reinforced flat samples under stretching. It was assumed that the nonlinearity of a layer and of a stack with multiple layers stowed at different angles is determined by nonlinear deformation of the layer at shear in the layer’s plane, which was described with the help of a piecewise-linear approximation. To construct the defining relations of the pack, the theory of laminated plates was used. The investigation results showed a satisfactory agreement of calculated and experimental data.

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Authors and Affiliations

  1. Moscow, Russia

    A. M. Dumansky, L. P. Tairova, I. Gorlach & M. A. Alimov

Authors
  1. A. M. Dumansky
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  2. L. P. Tairova
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  3. I. Gorlach
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  4. M. A. Alimov
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Additional information

Original Russian Text © A.M. Dumansky, L.P. Tairova, I. Gorlach, M.A. Alimov, 2011, published in Problemy Mashinostroeniya i Nadezhnosti Mashin, 2011, No. 5, pp. 91–97.

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Dumansky, A.M., Tairova, L.P., Gorlach, I. et al. A design-experiment study of nonlinear properties of coal-plastic. J. Mach. Manuf. Reliab. 40, 483–488 (2011). https://doi.org/10.3103/S1052618811050074

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  • DOI: https://doi.org/10.3103/S1052618811050074

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