Free Vibration of Composite Cylindrical Shells Based on Third-Order Shear Deformation Theory

<div>Relation between frequency and circumferential node number of five-layered shells <svg height="13.7421pt" id="M136" style="vertical-align:-2.1507pt" version="1.1" viewbox="-0.0498162 -11.5914 90.1798 13.7421" width="90.1798pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M241 635C89 635 35 457 35 312C35 153 89 -12 240 -12C390 -12 443 166 443 312C443 466 390 635 241 635ZM238 602C329 602 354 454 354 312C354 172 330 22 240 22C152 22 124 173 124 313S148 602 238 602Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,6.24,-5.741)"><path d="M245 635C92 635 37 457 37 312C37 149 91 -12 244 -12C395 -12 449 166 449 312C449 469 395 635 245 635ZM243 598C332 598 358 454 358 312C358 173 334 26 245 26C158 26 128 174 128 313S152 598 243 598Z"></path></g><g transform="matrix(.013,0,0,-0.013,11.186,0)"><path d="M368 703H309L44 -163H104L368 703Z"></path></g><g transform="matrix(.013,0,0,-0.013,16.548,0)"><path 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Journal of Mathematics

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Figure 8

Figure 8: Free Vibration of Composite Cylindrical Shells Based on Third-Order Shear Deformation Theory 