Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
Two-dimensional linear model of elastic shell made of anisonropic heterogeneous material. / Tovstik, Petr E.; Tovstik, Tatiana Petrovna; Alchibaev, Daniil.
COMPDYN 2015 - 5th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering. National Technical University of Athens (NTUA), 2015. p. 933-945.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
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TY - GEN
T1 - Two-dimensional linear model of elastic shell made of anisonropic heterogeneous material
AU - Tovstik, Petr E.
AU - Tovstik, Tatiana Petrovna
AU - Alchibaev, Daniil
PY - 2015
Y1 - 2015
N2 - A thin linearly elastic shell made of heterogeneous anisotropic material is studied. The general anisotropy described by 21 elastic moduli is examined. The material may be functionally graduated or multi-layered. The asymptotic expansions in powers of the relative shell thickness of the three-dimensional elasticity equations are used to deliver the two-dimensional shell model. In the zeroth-order approximation the model of 8th differential order is obtained. The asymptotic precision of this model is the same as the precision of the classic Kirchhoff-Love model for isotropic shell. Influence of the elastic moduli variation in the thickness direction is examined. As an example the Donnell system for shallow shells is presented, and this system is used to discuss the free transversal shell vibrations spectrum.
AB - A thin linearly elastic shell made of heterogeneous anisotropic material is studied. The general anisotropy described by 21 elastic moduli is examined. The material may be functionally graduated or multi-layered. The asymptotic expansions in powers of the relative shell thickness of the three-dimensional elasticity equations are used to deliver the two-dimensional shell model. In the zeroth-order approximation the model of 8th differential order is obtained. The asymptotic precision of this model is the same as the precision of the classic Kirchhoff-Love model for isotropic shell. Influence of the elastic moduli variation in the thickness direction is examined. As an example the Donnell system for shallow shells is presented, and this system is used to discuss the free transversal shell vibrations spectrum.
KW - Asymptotical expansions
KW - General anisotropy
KW - Linear two-dimensional model
KW - Thin shell
UR - http://www.scopus.com/inward/record.url?scp=84942279590&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84942279590
SP - 933
EP - 945
BT - COMPDYN 2015 - 5th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering
PB - National Technical University of Athens (NTUA)
T2 - 5th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2015
Y2 - 24 May 2015 through 26 May 2015
ER -
ID: 9282416