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

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

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.

• Jezik: Angleški jezik
• Ključne besede: civil engineering, thin-walled structures, shell-substrate cylindrical composite, axial compression, wrinkling pattern transition, mode jumping, dissipative implicit dynamics schemes
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FGG - Fakulteta za gradbeništvo in geodezijo
• Status publikacije: Objavljeno
• Različica publikacije: Recenzirani rokopis
• Leto izida: 2020
• Št. strani: Str. 1-12
• Številčenje: Letn. 150, št. 1, 106700
• PID: 20.500.12556/RUL-116662
• UDK: 624.07
• ISSN pri članku: 0263-8231
• DOI: 10.1016/j.tws.2020.106700
• COBISS.SI-ID: 9108321
• Datum objave v RUL: 01.06.2020

Gradivo je del revije

• Naslov: Thin-walled structures
• Skrajšan naslov: Thin-walled struct.
• Založnik: Elsevier
• ISSN: 0263-8231
• COBISS.SI-ID: 26529536

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.
• Začetek licenciranja: 01.06.2020

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: gradbeništvo, gradbene konstrukcije, cilindrični kompozit iz lupine in substrata, osni tlak, preskok oblike

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: J2-1722
• Naslov: Numerično modeliranje širjenja razpok v krhkih in duktilnih konstrukcijah
• Akronim: ComFrac