Influence of inertia and material properties on discrete simulation of dynamic fracture of concrete

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F18%3APU131759" target="_blank" >RIV/00216305:26110/18:PU131759 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.prostr.2018.12.286" target="_blank" >http://dx.doi.org/10.1016/j.prostr.2018.12.286</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.prostr.2018.12.286" target="_blank" >10.1016/j.prostr.2018.12.286</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of inertia and material properties on discrete simulation of dynamic fracture of concrete

Popis výsledku v původním jazyce

It is well known that the material resistance to fracture increases with increasing strain rate. For relatively slow strain rates, the response is strongly dependent on the material fracture properties such as material strength or fracture energy, whereas with further increase of loading rate, the loading force is getting influenced predominantly by the material inertia. The response of the material changes with strain rate in the sense of loading force as well as character of the crack pattern. The contribution is focused on simulations of fracture experiments at various strain rates. Dynamical concrete fracture is simulated using meso-scale discrete model, i.e. a system of interconnected discrete particles. Material properties in the model are randomly distributed within the volume domain. Similar to quasi-static loading rates, the material randomness influences the dynamic fracture as well. Deterministic and probabilistic simulations are compared and the influence of material parameters and their strain rate dependence are discussed.

Název v anglickém jazyce

Influence of inertia and material properties on discrete simulation of dynamic fracture of concrete

Popis výsledku anglicky

It is well known that the material resistance to fracture increases with increasing strain rate. For relatively slow strain rates, the response is strongly dependent on the material fracture properties such as material strength or fracture energy, whereas with further increase of loading rate, the loading force is getting influenced predominantly by the material inertia. The response of the material changes with strain rate in the sense of loading force as well as character of the crack pattern. The contribution is focused on simulations of fracture experiments at various strain rates. Dynamical concrete fracture is simulated using meso-scale discrete model, i.e. a system of interconnected discrete particles. Material properties in the model are randomly distributed within the volume domain. Similar to quasi-static loading rates, the material randomness influences the dynamic fracture as well. Deterministic and probabilistic simulations are compared and the influence of material parameters and their strain rate dependence are discussed.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

ECF22 - Loading and Environmental effects on Structural Integrity

ISBN

—

ISSN

2452-3216

e-ISSN

—

Počet stran výsledku

6

Strana od-do

1367-1372

Název nakladatele

Neuveden

Místo vydání

Neuveden

Místo konání akce

Beograd

Datum konání akce

26. 8. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000459860900226