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Free vibration analysis of sandwich porous metal cylindrical shells including initial curvature effect
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Journal Article
Free vibration analysis of sandwich porous metal cylindrical shells including initial curvature effect
2026
Overview
This work mainly aims to analyze the natural vibration of the sandwich-structured cylindrical shells using a theoretical framework for the structral with a porous metal core layer. The theoretical model applies the modified thick shell theory (MTST), which includes the initial curvature effect. Designed to reduce structural weight, these shells are composed of a thick porous metal core sandwiched between thin layers of homogeneous metallic material. The comparative study has revealed the advantages of using the MTST over the classical shell theory (CST), emphasizing the limitations of the CST, particularly for large thickness structures with high-frequency modes. This combination in the free vibrational examination of sandwich porous metal shells underscores the accuracy, high reliability, and efficiency of the MTST and the theoretical approach. Furthermore, this work contributes to a deeper understanding of the evaluation and development of these structures for practical applications.
Publisher
IOP Publishing
Subject
