Journal
DOKLADY PHYSICS
Volume 61, Issue 12, Pages 604-610Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1028335816120016
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Funding
- Russian Science Foundation [14-11-00844]
- Russian Science Foundation [14-11-00844] Funding Source: Russian Science Foundation
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Effective Young's moduli and Poisson's ratios of two-layer tubes from cubic crystals have been analyzed theoretically. It is shown (using derived formulas for numerical estimates) that the mechanical properties of two-layer tube composites from auxetics and nonauxetics are not described by the mixture rule. It is demonstrated that the deviation of the effective modulus from the mixture rule predictions rapidly increases with an increase in Young's modulus of the nonauxetic components of a composite. It is established that, combining auxetics and nonauxetics in layered tubes, one can obtain, depending on the packing order in layers, either a strong increase or a decrease in auxeticity.
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