<abstract xmlns="http://www.w3.org/1999/xhtml"><p>This paper presents the imperfection sensitivity of annular plate with three-layered structure. The plate composed of thin elastic facings and a thicker elastic core is loaded in facing plane. The classical issue of a three-layered plate was solved for dynamic deflection problem using the approximation methods: orthogonalization and finite difference. The solution includes the axisymmetric and asymmetric plate modes of the dynamic stability loss. The evaluation of the rate of plate sensitivity to imperfection of plate preliminary geometry has been enriched by the analysis of plate models built of finite elements. The ABAQUS program has been used. The numerous calculation results in the form of deflection characteristics, buckling modes, values of critical parameters create the view of response of dynamic plate structure with different rate of imperfection and linear in time loading growth, too.</p></abstract>

This paper presents the imperfection sensitivity of annular plate with three-layered structure. The plate composed of thin elastic facings and a thicker elastic core is loaded in facing plane. The classical issue of a three-layered plate was solved for dynamic deflection problem using the approximation methods: orthogonalization and finite difference. The solution includes the axisymmetric and asymmetric plate modes of the dynamic stability loss. The evaluation of the rate of plate sensitivity to imperfection of plate preliminary geometry has been enriched by the analysis of plate models built of finite elements. The ABAQUS program has been used. The numerous calculation results in the form of deflection characteristics, buckling modes, values of critical parameters create the view of response of dynamic plate structure with different rate of imperfection and linear in time loading growth, too.

Dynamic Response of Three-Layered Annular Plate with Imperfections

Faculty of Mechanical Engineering and Computer Science, University of Bielsko-Biaa,. Willowa 2, 43-309 Bielsko-Bia-Poland

Studia Geotechnica et Mechanica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Dynamic Response of Three-Layered Annular Plate with Imperfections"}

This paper presents the imperfection sensitivity of annular plate with three-layered structure. The plate composed of thin elastic facings and a thicker...

Dynamic Response of Three-Layered Annular Plate with Imperfections

Published Online: Feb 28, 2015

Page range: 13 - 25

DOI: https://doi.org/10.2478/sgem-2014-0032

Keywords
sandwich, annular plate, dynamic stability, imperfections, finite difference method,, finite element method

© 2014 Dorota Pawlus and Svitlana Isaieva

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Dynamic Response of Three-Layered Annular Plate with Imperfections

Published Online: Feb 28, 2015

Page range: 13 - 25

DOI: https://doi.org/10.2478/sgem-2014-0032

Keywordssandwich, annular plate, dynamic stability, imperfections, finite difference method,, finite element method

© 2014 Dorota Pawlus and Svitlana Isaieva

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
sandwich, annular plate, dynamic stability, imperfections, finite difference method,, finite element method