Marko Lavrenčič (Author), Boštjan Brank (Author), Miha Brojan (Author)

Abstract

We propose an efficient computational model for predicting the surface wrinkling in axially compressed bi-layer cylindrical shell-substrate composites. To capture the transitions between the wrinkling modes in the far post-buckling regime, we use implicit dynamics. In this context we apply a generalized and an energy-decaying time stepping schemes that numerically dissipate in the high frequency range. The other components of the model are a geometrically exact, rotation-less, nonlinear shell finite element for the cylinder and an elastic foundation that represents the substrate. We show that the proposed computational model predicts the wrinkling pattern transition from axisymmetric to diamond-like mode, which is consistent with the numerical and laboratory experiments reported earlier. Furthermore, the results of our computational model show the existence of several diamond-like mode jumps in the post-buckling regime, a result that has not yet been reported for the axially compressed shell-substrate cylinders.

Keywords

gradbeništvo;gradbene konstrukcije;cilindrični kompozit iz lupine in substrata;osni tlak;preskok oblike;civil engineering;thin-walled structures;shell-substrate cylindrical composite;axial compression;wrinkling pattern transition;mode jumping;dissipative implicit dynamics schemes;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FGG - Faculty of Civil and Geodetic Engineering
UDC: 624.07
COBISS: 9108321 Link will open in a new window
ISSN: 0263-8231
Views: 822
Downloads: 105
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Other data

Secondary language: Slovenian
Secondary keywords: gradbeništvo;gradbene konstrukcije;cilindrični kompozit iz lupine in substrata;osni tlak;preskok oblike;
Type (COBISS): Article
Embargo end date (OpenAIRE): 2022-06-01
Pages: str. 1-12
Volume: ǂLetn. ǂ150
Issue: ǂšt. ǂ1, 106700
Chronology: maj 2020
DOI: 10.1016/j.tws.2020.106700
ID: 11779597