<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>In the present paper the variant of computational methods of stability and initial post-buckling behavior of isotropic shells was generalized with respect to laminated composite shells. Using methods of the asymptotic analysis of the Timoshenko–Mindlin theory, the relationships for calculation of shells with the small geometrical imperfections of the different shapes have been produced. On the basis of obtained equations, the technique of calculation of a non-linear pre-buckling state, limiting loads and bifurcation, and also initial post-buckling behavior of laminated cylindrical shells at an axial compression and external pressure have been worked out. The results of calculation for the shells made of glass fiber-reinforced plastic and carbon fiber-reinforced plastic with multimodal imperfections and dimple imperfections have been presented. The features of transformation of the interacting modes of imperfections have been researched.</p>
</abstract>

In the present paper the variant of computational methods of stability and initial post-buckling behavior of isotropic shells was generalized with respect to laminated composite shells. Using methods of the asymptotic analysis of the Timoshenko–Mindlin theory, the relationships for calculation of shells with the small geometrical imperfections of the different shapes have been produced. On the basis of obtained equations, the technique of calculation of a non-linear pre-buckling state, limiting loads and bifurcation, and also initial post-buckling behavior of laminated cylindrical shells at an axial compression and external pressure have been worked out. The results of calculation for the shells made of glass fiber-reinforced plastic and carbon fiber-reinforced plastic with multimodal imperfections and dimple imperfections have been presented. The features of transformation of the interacting modes of imperfections have been researched.

On the Method of Calculation of Buckling and Post-Buckling Behavior of Laminated Shells with Small Arbitrary Imperfections

Warsaw University of Life Sciences – SGGW

National University of Water Management and Nature Resources Use

Acta Scientiarum Polonorum Architectura

This work is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License.

In the present paper the variant of computational methods of stability and initial post-buckling behavior of isotropic shells was generalized with respect to...

On the Method of Calculation of Buckling and Post-Buckling Behavior of Laminated Shells with Small Arbitrary Imperfections

Published Online: Aug 19, 2021

Page range: 17 - 25

Received: Apr 29, 2021

Accepted: May 26, 2021

DOI: https://doi.org/10.22630/aspa.2021.20.2.11

Keywords
buckling, post-buckling, imperfection, laminated shell, mode interaction, Cauchy problem

© 2021 Mykola Semenyuk et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License.

On the Method of Calculation of Buckling and Post-Buckling Behavior of Laminated Shells with Small Arbitrary Imperfections

Published Online: Aug 19, 2021

Page range: 17 - 25

Received: Apr 29, 2021

Accepted: May 26, 2021

DOI: https://doi.org/10.22630/aspa.2021.20.2.11

Keywordsbuckling, post-buckling, imperfection, laminated shell, mode interaction, Cauchy problem

© 2021 Mykola Semenyuk et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License.

Keywords
buckling, post-buckling, imperfection, laminated shell, mode interaction, Cauchy problem