Abstract
The paper describes the method of determining the elasticity modulus of the external layer of the double-layer circular shell consisting of multiple layers with various elasticity modules. The internal layer is produced of the material, which elasticity module is known to experimenters. The outer layer is made of a softer material with unknown elasticity modulus. The method is based on the numerical solution of the nonlinear contact task of compressing the single-layer circular shell, which has been modified to provide solution for the double-layer circular shell. As a result of the research the ratios were obtained, which allow to determine the elasticity module of the external layer given the known value of elasticity module of the internal layer. The method is useful for testing the time and external factors dependant properties of the materials.
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This study was financially supported by the Latvian Ministry of Education and Science according to Contract No. V7909.1.
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Gluhih, S., Kovalovs, A., Chate, A. (2015). Determining the Modulus of Elasticity for Polymer Materials by Numerical Testing Thin-Walled Double-Layer Circular Shells. In: Altenbach, H., Mikhasev, G. (eds) Shell and Membrane Theories in Mechanics and Biology. Advanced Structured Materials, vol 45. Springer, Cham. https://doi.org/10.1007/978-3-319-02535-3_12
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DOI: https://doi.org/10.1007/978-3-319-02535-3_12
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