Exploring Induced Heterogeneity in Elastic Discrete Mechanical Models
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F26%3A0197790" target="_blank" >RIV/00216305:26110/26:0197790 - isvavai.cz</a>
Výsledek na webu
<a href="https://framcos.org/FraMCoS-12/Full-Papers/1193.pdf" target="_blank" >https://framcos.org/FraMCoS-12/Full-Papers/1193.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.21012/FC12.1193" target="_blank" >10.21012/FC12.1193</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Exploring Induced Heterogeneity in Elastic Discrete Mechanical Models
Popis výsledku v původním jazyce
Mesoscale discrete lattice models offer a direct way to incorporate the heterogeneous microstructure of concrete and other geomaterials efficiently, using vector-based constitutive laws with homogeneous material parameters. These models exhibit stress oscillations, which, if deemed non-physical, can be suppressed using methods such as auxiliary stress projection or deviatoric-volumetric decomposition to produce homogeneous elastic stress fields. This study examines the elastic behavior of the homogenized models with controlled heterogeneity introduced via spatial randomization of material parameters, with an emphasis on the replication of the oscillations in the non-homogenized discrete model. Simulations with varying degrees of spatial correlation under different macroscopic loading conditions reveal that the original stress oscillations are best replicated with spatially independent randomization. However, none of the techniques fully reproduce the original oscillations.
Název v anglickém jazyce
Exploring Induced Heterogeneity in Elastic Discrete Mechanical Models
Popis výsledku anglicky
Mesoscale discrete lattice models offer a direct way to incorporate the heterogeneous microstructure of concrete and other geomaterials efficiently, using vector-based constitutive laws with homogeneous material parameters. These models exhibit stress oscillations, which, if deemed non-physical, can be suppressed using methods such as auxiliary stress projection or deviatoric-volumetric decomposition to produce homogeneous elastic stress fields. This study examines the elastic behavior of the homogenized models with controlled heterogeneity introduced via spatial randomization of material parameters, with an emphasis on the replication of the oscillations in the non-homogenized discrete model. Simulations with varying degrees of spatial correlation under different macroscopic loading conditions reveal that the original stress oscillations are best replicated with spatially independent randomization. However, none of the techniques fully reproduce the original oscillations.
Klasifikace
Druh
O - Ostatní výsledky
CEP obor
—
OECD FORD obor
20102 - Construction engineering, Municipal and structural engineering
Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů