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

Povzetek

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 approach within our original velocity-based framework. The velocity-based formulation is thus enhanced with additional capabilities of detection of critical load level and critical cross-section and introduction of the jump-like variables at the level of velocities and angular velocities to enable more realistic description of strain localisation. A modified consistency condition is derived using the method of weighted residuals in complete accordance with the theoretical concept of strong discontinuity. One of the key advantages of the proposed method is its computational efficiency, which is preserved even after detecting cross-sectional singularities and handling post-critical localised strains. The numerical examples show the effectiveness and robustness of the proposed approach.

Ključne besede

gradbeništvo;vključene nezveznosti;mehčanje materiala;prostorske rotacije;post-kritična analiza;lokalizacija deformacij;civil engineering;embedded discontinuity;material softening;three-dimensional rotations;post-critical analysis;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FGG - Fakulteta za gradbeništvo in geodezijo
UDK: 624.04:624.072
COBISS: 200643843 Povezava se bo odprla v novem oknu
ISSN: 0045-7949
Št. ogledov: 98
Št. prenosov: 18
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: gradbeništvo;vključene nezveznosti;mehčanje materiala;prostorske rotacije;postkritična analiza;lokalizacija deformacij;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 1-16
Zvezek: ǂVol. ǂ301, art. 107464
Čas izdaje: sept. 2024
DOI: 10.1016/j.compstruc.2024.107464
ID: 24518451