Path following using velocity-based approach in quasi-static analysis

Kusuma Chandrashekhara, Sudhanva (avtor), Zupan, Dejan (avtor)

In the present work, we propose a novel implementation of arc-length method for the computation of equilibrium paths for frame-like structures. We exploit the advantages of velocity-based beam formulations and adapt it to quasi-static analysis with path following control. We show that such formulation allows the arc-length control constraint equation to be directly employed in its originally defined differential form, while the arc-length parameter is replaced by time in our adaptation. This simplifies the treatment of the extended system of equations and its solution procedure. Our approach also enables the rotational degrees of freedom to be members of control parameters. The ability of the proposed method to successfully and efficiently compute complex equilibrium paths in post-buckling regime is demonstrated by several numerical examples.

• Jezik: Angleški jezik
• Ključne besede: nonlinear beams, three-dimensional rotations, post-buckling, arc-length method, critical points
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FGG - Fakulteta za gradbeništvo in geodezijo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2023
• Št. strani: 15 str.
• Številčenje: Vol. 275, art. 112292
• PID: 20.500.12556/RUL-146659
• UDK: 624.04:624.072
• ISSN pri članku: 0020-7683
• DOI: 10.1016/j.ijsolstr.2023.112292
• COBISS.SI-ID: 154531075
• Datum objave v RUL: 05.06.2023

Gradivo je del revije

• Naslov: International journal of solids and structures
• Skrajšan naslov: Int. j. solids struct.
• Založnik: Pergamon Press
• ISSN: 0020-7683
• COBISS.SI-ID: 997903

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.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: nelinearni nosilci, prostorske rotacije, obnašanje po uklonu, metoda ločne dolžine, kritične točke

Projekti

• Financer: EC - European Commission
• Program financ.: H2020
• Številka projekta: 860124
• Naslov: Joint Training on Numerical Modelling of Highly Flexible Structures for Industrial Applications
• Akronim: THREAD