Detail publikačního výsledku

Strain Rate Dependency of Material Parameters in Discrete Model for Concrete Fracture

KVĚTOŇ, J.; ELIÁŠ, J.

Originální název

Strain Rate Dependency of Material Parameters in Discrete Model for Concrete Fracture

Anglický název

Strain Rate Dependency of Material Parameters in Discrete Model for Concrete Fracture

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The contribution presents simulations of concrete experiments using discrete meso-scale model. In the model, the volume domain is discretized into a system of interconnected particles of polyhedral shape that are considered as ideally rigid. The behavior of material is simplified by the particle interaction and is described by the constitutive law applied at particle contacts. The existing constitutive law is enhanced with the the strain rate dependency. With increasing rate of deformation, the material resistance is increased. Various settings of function governing such an increase are considered. In combination with influence of inertia forces, the model is capable of representing the dynamical nature of concrete fracture. The results obtained with the model are compared with the results of dynamical experiments from literature.

Anglický abstrakt

The contribution presents simulations of concrete experiments using discrete meso-scale model. In the model, the volume domain is discretized into a system of interconnected particles of polyhedral shape that are considered as ideally rigid. The behavior of material is simplified by the particle interaction and is described by the constitutive law applied at particle contacts. The existing constitutive law is enhanced with the the strain rate dependency. With increasing rate of deformation, the material resistance is increased. Various settings of function governing such an increase are considered. In combination with influence of inertia forces, the model is capable of representing the dynamical nature of concrete fracture. The results obtained with the model are compared with the results of dynamical experiments from literature.

Klíčová slova

Strain Rate, Inertia, Concrete Fracture, Dynamics

Klíčová slova v angličtině

Strain Rate, Inertia, Concrete Fracture, Dynamics

Autoři

KVĚTOŇ, J.; ELIÁŠ, J.

Rok RIV

2019

Vydáno

25.01.2018

Nakladatel

Vysoké učení technické v Brně, Fakulta stavební

Místo

Brno

ISBN

978-80-86433-69-1

Kniha

Sborník příspěvků Juniorstav 2018

Strany od

582

Strany do

586

Strany počet

5

BibTex

@inproceedings{BUT151407,
  author="Josef {Květoň} and Jan {Eliáš}",
  title="Strain Rate Dependency of Material Parameters in Discrete Model for Concrete Fracture",
  booktitle="Sborník příspěvků Juniorstav 2018",
  year="2018",
  pages="582--586",
  publisher="Vysoké učení technické v Brně, Fakulta stavební",
  address="Brno",
  isbn="978-80-86433-69-1"
}