Experimental procedure for determination of the energy dissipation capacity of ultra-high-performance fibre-reinforced concrete under localized impact loading

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00324918" target="_blank" >RIV/68407700:21110/19:00324918 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1177/2041419618819506" target="_blank" >https://doi.org/10.1177/2041419618819506</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1177/2041419618819506" target="_blank" >10.1177/2041419618819506</a>

Result language

angličtina

Original language name

Experimental procedure for determination of the energy dissipation capacity of ultra-high-performance fibre-reinforced concrete under localized impact loading

Original language description

Research presented in this paper is aimed to investigate the ability of UHPFRC to absorb and dissipate mechanical energy at elevated strain rate loading. Specimens made of UHPFRC were subjected to the low-velocity impact by using the new testing procedure where no fixed supports that hold the sample during the impact were applied. The fibre volume fraction of the UHPFRC was set as the main test variable in the framework of this study and the volumetric fraction of fibres was ranging from 0.125% to 2%. A high-speed camera was used to measure velocities of the impactor and the UHPFRC specimen before and after the impact. Consequently, the energy dissipated by the UHPFRC specimen during the impact was calculated using a simple energy balance equation. To determine the basic material properties of UHPFRC, quasi-static loading rate was applied and conventional methods were used. A significant difference between the values of dissipated energies for different loading rates and various fibre volumetric fractions was observed. In can be noted that the new procedure shows a reasonable approach for testing the fibre-reinforced cementitious composites under localized impact loading and is worthy of further optimization.

Czech name

—

Czech description

—

Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

—

OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/VI20172020061" target="_blank" >VI20172020061: Research, development, testing and performance assessment of critical infrastructure parts</a><br>

Continuities

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

Publication year

2019

Confidentiality

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

Name of the periodical

International Journal of Protective Structures

ISSN

2041-4196

e-ISSN

2041-420X

Volume of the periodical

10

Issue of the periodical within the volume

2

Country of publishing house

GB - UNITED KINGDOM

Number of pages

15

Pages from-to

251-265

UT code for WoS article

000471123600006

EID of the result in the Scopus database

2-s2.0-85062989072