Imposed correlation between random field and discrete particle placement

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F16%3APU121713" target="_blank" >RIV/00216305:26110/16:PU121713 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/978-3-319-47886-9_17" target="_blank" >http://dx.doi.org/10.1007/978-3-319-47886-9_17</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-319-47886-9_17" target="_blank" >10.1007/978-3-319-47886-9_17</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Imposed correlation between random field and discrete particle placement

Popis výsledku v původním jazyce

In recent time it has be recognised that capturing the spatial variability of mechanical properties of heterogeneous materials is essential for a realistic estimation of uncertainties in probabilistic structural analyses. Several authors have successfully proposed random field concepts in combination with standard finite elements. Although some discrete element models such as the lattice discrete particle model (LDPM) already mimic microstructural effects associated with the heterogeneity of concrete very well, when compared to the continuum framework, there are still known reasons for introducing higher order spatial variability. One such key issue concerns the ability to capture the well-known statistical size effect associated with the physical meaning of an auto-correlation length in material property fields. The presented paper addresses the issue of imposing correlation between a particular structural discretisation (i.e. radius and placement of particles in a discrete framework) and the realization of a random field for spatially variable material properties. Authors present here a novel method for imposing correlation between the discrete particle placement and a governing random field and illustrate the important implications towards enhanced realism in the reliability based assessment of concrete fastening systems.

Název v anglickém jazyce

Imposed correlation between random field and discrete particle placement

Popis výsledku anglicky

In recent time it has be recognised that capturing the spatial variability of mechanical properties of heterogeneous materials is essential for a realistic estimation of uncertainties in probabilistic structural analyses. Several authors have successfully proposed random field concepts in combination with standard finite elements. Although some discrete element models such as the lattice discrete particle model (LDPM) already mimic microstructural effects associated with the heterogeneity of concrete very well, when compared to the continuum framework, there are still known reasons for introducing higher order spatial variability. One such key issue concerns the ability to capture the well-known statistical size effect associated with the physical meaning of an auto-correlation length in material property fields. The presented paper addresses the issue of imposing correlation between a particular structural discretisation (i.e. radius and placement of particles in a discrete framework) and the realization of a random field for spatially variable material properties. Authors present here a novel method for imposing correlation between the discrete particle placement and a governing random field and illustrate the important implications towards enhanced realism in the reliability based assessment of concrete fastening systems.

Druh

D - Stať ve sborníku

CEP obor

JM - Inženýrské stavitelství

OECD FORD obor

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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)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

14th International Probabilistic Workshop

ISBN

978-3-319-47885-2

ISSN

—

e-ISSN

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Počet stran výsledku

8

Strana od-do

245-252

Název nakladatele

Springer International Publishing

Místo vydání

Ghent, Belgium

Místo konání akce

Ghent

Datum konání akce

5. 12. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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