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Št. zadetkov: 4
Velocity based elements for the quasi-static analysis of beams and frames
Sudhanva Kusuma Chandrashekhara, Dejan Zupan
Objavljeni znanstveni prispevek na konferenci
Oznake: beam elements;path following;arc-length method;
In the present work, we propose the extension of the equilibrium equation based on the velocity based formulation with the introduction of an arc-length constraint. With the configuration variables defined in terms of time dependent quantities, the arc-length parameter in the original arc-length con ...
Leto: 2021 Vir: Fakulteta za gradbeništvo in geodezijo (UL FGG)
Path following using velocity-based approach in quasi-static analysis
Sudhanva Kusuma Chandrashekhara, Dejan Zupan
Izvirni znanstveni članek
Oznake: nonlinear beams;three-dimensional rotations;post-buckling;arc-length method;critical points;
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 formulati ...
Leto: 2023 Vir: Fakulteta za gradbeništvo in geodezijo (UL FGG)
Analyzing material softening and strain localisation through embedded strong discontinuity approach within velocity-based beam formulation
Sudhanva Kusuma Chandrashekhara, Dejan Zupan
Izvirni znanstveni članek
Oznake: gradbeništvo;vključene nezveznosti;mehčanje materiala;prostorske rotacije;post-kritična analiza;lokalizacija deformacij;civil engineering;embedded discontinuity;material softening;three-dimensional rotations;post-critical analysis;
In this paper, we propose a novel computational formulation capable of solving the problem of material softening and the emerging localisation of strains in spatial frame-like structure, a common phenomenon for brittle heterogeneous materials. This study adopts the embedded strong discontinuity appr ...
Leto: 2024 Vir: Fakulteta za gradbeništvo in geodezijo (UL FGG)
Geometrijsko in materialno nelinearna dinamika nosilcev z lokalizacijo deformacij
Sudhanva Kusuma Chandrashekhara, Dejan Zupan, Dejan Zupan, Violeta Bokan-Bosiljkov, Gregor Trtnik, Miha Brojan, Gordan Jelenić
Doktorska disertacija
Oznake: Built Environment;civil engineering;doctoral thesis;geometrically exact beam;three-dimensional rotations;material softening;strain localization;arc-length method;embedded discontinuity;critical points;
Modeliranje nestabilnosti v konstrukcijah, ki so podvržene zahtevnejšim deformacijam, se običajno odraža v občutljivem obnašanju numeričnih metod reševanja in tako predstavlja pomemben izziv v numeričnem modeliranju. V disertaciji predstavljamo numerično formulacijo za analizo postkritičnega obnašan ...
Leto: 2024 Vir: Fakulteta za gradbeništvo in geodezijo (UL FGG)
Št. zadetkov: 4
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