Simulations of Concrete Fracture at Various Strain Rates: Parametric Study

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F17%3APU125273" target="_blank" >RIV/00216305:26110/17:PU125273 - isvavai.cz</a>

Result on the web

<a href="https://files.eccomasproceedia.org/papers/compdyn-2017/17557.pdf?mtime=20171002111216" target="_blank" >https://files.eccomasproceedia.org/papers/compdyn-2017/17557.pdf?mtime=20171002111216</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.7712/120117.5766.17557" target="_blank" >10.7712/120117.5766.17557</a>

Result language

angličtina

Original language name

Simulations of Concrete Fracture at Various Strain Rates: Parametric Study

Original language description

Concrete fracture can be simulated in static regime, however, it is a dynamical process. For very slow loading rates, the kinetic energy is negligible compared to the energy dissipated by fracturing, and the influence of inertia can be neglected. In all other cases, neglecting the influence of inertia forces can lead to improper results. With increasing loading rate, increase in strength and energy dissipation as well as changes in crack pattern can be observed. The contribution presents dynamical simulations of experiments on concrete specimens under various displacement rates, from very slow, quasi-static, to high displacement rates. The simulations are calculated using discrete particle model, the material is represented by a system of interconnected ideally rigid polyhedral particles. The solution of equations of motion is calculated using implicit time integration Newmark scheme. The constitutive behavior of the material is strain rate independent. For high strain rates the influence of inertia forces dominates and is mainly responsible for increase in loading forces as well as for change in the crack pattern and crack branching. The results obtained with the model are compared to experimental data from literature.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20102 - Construction engineering, Municipal and structural engineering

Project

<a href="/en/project/GJ15-19865Y" target="_blank" >GJ15-19865Y: Discrete fracture models: adaptive remeshing, energy release rate, and stress along boundaries</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

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

Article name in the collection

Computational Structural Dynamics and Earthquake Engineering

ISBN

978-618-82844-1-8

ISSN

—

e-ISSN

—

Number of pages

10

Pages from-to

4847-4856

Publisher name

National Technical University of Athens

Place of publication

Rhodos, Řecko

Event location

Rhodes Island

Event date

Jun 15, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

—