Multiple wrinkling mode transitions in axially compressed cylindrical shell-substrate in dynamics

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

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.

• Language: English
• Keywords: civil engineering, thin-walled structures, shell-substrate cylindrical composite, axial compression, wrinkling pattern transition, mode jumping, dissipative implicit dynamics schemes
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FGG - Faculty of Civil and Geodetic Engineering
• Publication status: Published
• Publication version: Author Accepted Manuscript
• Year: 2020
• Number of pages: Str. 1-12
• Numbering: Letn. 150, št. 1, 106700
• PID: 20.500.12556/RUL-116662
• UDC: 624.07
• ISSN on article: 0263-8231
• DOI: 10.1016/j.tws.2020.106700
• COBISS.SI-ID: 9108321
• Publication date in RUL: 01.06.2020

Record is a part of a journal

• Title: Thin-walled structures
• Shortened title: Thin-walled struct.
• Publisher: Elsevier
• ISSN: 0263-8231
• COBISS.SI-ID: 26529536

Licences

• License: CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
• Link: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Description: The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
• Licensing start date: 01.06.2020

Secondary language

• Language: Slovenian
• Keywords: gradbeništvo, gradbene konstrukcije, cilindrični kompozit iz lupine in substrata, osni tlak, preskok oblike

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: J2-1722
• Name: Numerično modeliranje širjenja razpok v krhkih in duktilnih konstrukcijah
• Acronym: ComFrac