Mechanics of Solids (about journal) Mechanics of Solids
A Journal of Russian Academy of Sciences
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IssuesArchive of Issues2020-6pp.827-836

Archive of Issues

Total articles in the database: 4918
In Russian (. . ): 2350
In English (Mech. Solids): 2568

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Nasedkin A.V., Nasedkina A.A., and Nassar M.E., "Homogenization of Porous Piezocomposites with Extreme Properties at Pore Boundaries by Effective Moduli Method," Mech. Solids. 55 (6), 827-836 (2020)
Year 2020 Volume 55 Number 6 Pages 827-836
DOI 10.3103/S0025654420050131
Title Homogenization of Porous Piezocomposites with Extreme Properties at Pore Boundaries by Effective Moduli Method
Author(s) Nasedkin A.V. (Southern Federal University, Rostov-on-Don, 344006 Russia, avnasedkin@sfedu.ru)
Nasedkina A.A. (Southern Federal University, Rostov-on-Don, 344006 Russia)
Nassar M.E. (Southern Federal University, Rostov-on-Don, 344006 Russia; Menoufia University, Shebin El-Kom, Menoufia, Egypt)
Abstract The article deals with problems on determining the effective moduli of porous piezoceramic materials with substances that have extreme properties and are deposited on the pore boundaries. The argumentation for the method of effective moduli is given. The reciprocity relation, from which the properties of effective moduli that are similar to known ones for moduli of piezoelectric materials can be obtained, is proved. It is noted that for homogenization of porous piezoelectric composites with rigid or electrode pore boundaries, it is necessary to use models for materials having extremely large moduli that are located on the pore boundaries. Using numerical calculations, anomalous properties of various effective piezoelectric moduli that are promising for practical applications of the investigated piezocomposites have been revealed.
Keywords piezoelectricity, piezocomposite, porosity, effective modulus, piezoelectric modulus, representative volume element, rigid pore boundary, electrode pore boundary
Received 01 June 2020Revised 16 June 2020Accepted 03 July 2020
Link to Fulltext https://link.springer.com/article/10.3103/S0025654420050131
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