A COMPARISON OF SOME THIN SHELL THEORIES USED FOR THE DYNAMIC ANALYSIS OF STIFFENED CYLINDERS

✍ Scribed by R. RUOTOLO

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 271 KB
• Volume: 243
• Category: Article
• ISSN: 0022-460X
• DOI: 10.1006/jsvi.2000.3447

✦ Synopsis

The aim of this article is to compare Donnell's, Love's, Sanders' and FluK gge's thin shell theories in the evaluation of natural frequencies of cylinders sti!ened with rings and stringers, whose e!ect is smeared over the entire surface of the cylinder. It is demonstrated that due to the large increase in bending sti!ness related to rings, Donnell's theory provides highly inaccurate results with respect to the other three theories. Numerical results related to aluminum and composite sti!ened cylinders and a comparison with results obtained with a "nite element model of a sti!ened cylinder complete the work.