TY - JOUR

T1 - Nonlinear dynamic stability of cylindrical shells under pulsating axial loading via Finite Element analysis using numerical time integration

AU - Rizzetto, Fabio

AU - Jansen, Eelco Luc

AU - Strozzi, Matteo

AU - Pellicano, Francesco

N1 - Funding information: The first two authors (Fabio Rizzetto and Eelco Jansen) would like to acknowledge the very helpful support of Dr. Cristian Gebhardt through sharing his expertise during the research stay of the first author at Leibniz Universität Hannover, the institute of Prof. Raimund Rolfes, Institute of Structural Analysis.

PY - 2019/10

Y1 - 2019/10

N2 - Nonlinear dynamic stability investigations for isotropic and composite cylindrical shells under pulsating axial loading are carried out through Finite Element analysis using numerical time integration. In particular, important characteristics of the geometrically nonlinear behaviour are systematically studied through Finite Element analysis. The results of the Finite Element analysis are compared with results obtained in earlier studies using semi-analytical procedures. In order to facilitate the evaluation and the comparison of these two complementary approaches, a modal projection procedure has been developed for the Finite Element analysis. Critical dynamic loads and frequency-response curves for isotropic and composite shells under pulsating loading obtained with the Finite Element analysis using numerical time integration are shown to be generally in good qualitative agreement with the results of earlier semi-analytical work. The analysis of the modal amplitude achieved via the modal projection procedure also makes it possible to study the interactions between contributing modes and to observe and interpret interesting phenomena such as the occurrence of travelling waves in the circumferential direction of the shell.

AB - Nonlinear dynamic stability investigations for isotropic and composite cylindrical shells under pulsating axial loading are carried out through Finite Element analysis using numerical time integration. In particular, important characteristics of the geometrically nonlinear behaviour are systematically studied through Finite Element analysis. The results of the Finite Element analysis are compared with results obtained in earlier studies using semi-analytical procedures. In order to facilitate the evaluation and the comparison of these two complementary approaches, a modal projection procedure has been developed for the Finite Element analysis. Critical dynamic loads and frequency-response curves for isotropic and composite shells under pulsating loading obtained with the Finite Element analysis using numerical time integration are shown to be generally in good qualitative agreement with the results of earlier semi-analytical work. The analysis of the modal amplitude achieved via the modal projection procedure also makes it possible to study the interactions between contributing modes and to observe and interpret interesting phenomena such as the occurrence of travelling waves in the circumferential direction of the shell.

KW - Cylindrical shells

KW - Dynamic stability

KW - Nonlinear vibrations

UR - http://www.scopus.com/inward/record.url?scp=85066947942&partnerID=8YFLogxK

U2 - 10.1016/j.tws.2019.106213

DO - 10.1016/j.tws.2019.106213

M3 - Article

AN - SCOPUS:85066947942

VL - 143

JO - Thin-walled structures

JF - Thin-walled structures

SN - 0263-8231

M1 - 106213

ER -