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

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F18%3APU129856" target="_blank" >RIV/00216305:26110/18:PU129856 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Strain Rate Dependency of Material Parameters in Discrete Model for Concrete Fracture
Original language description
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.
Czech name
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Czech description
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Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20102 - Construction engineering, Municipal and structural engineering

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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