Experimental Procedure for Determination of the Energy Dissipation Capacity of UHPFRC under Localized Impact Loading

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00322577" target="_blank" >RIV/68407700:21110/18:00322577 - isvavai.cz</a>

Result on the web

<a href="http://icps5.put.edu.pl/sites/default/files/ICPS5-Final.pdf" target="_blank" >http://icps5.put.edu.pl/sites/default/files/ICPS5-Final.pdf</a>

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Experimental Procedure for Determination of the Energy Dissipation Capacity of UHPFRC under Localized Impact Loading

Original language description

Mechanical properties of concrete may change when the load is applied at various strain rates. The efficient design of concrete structural elements that are subjected to these loads must be carried out with the full knowledge of its material properties. A very important characteristic of ultra-high performance fibre-reinforced concrete (UHPFRC) is its ability to absorb and dissipate mechanical energy due to its enhanced ductility and strength, which comes mainly from the discrete fibre reinforcement. Improved mechanical properties are very beneficial when dealing with high strain-rate loads, such as projectile impacts, car impacts, earthquakes or blasts. Under quasi-static loading, a simple calculation of the area under the load-displacement (L-D) curves yields the dissipated mechanical energy. Obtaining the L-D diagrams during the higher strain rate loading may be difficult due to various disturbing effects such as sample and measuring apparatus oscillations, placement of contact sensors and most importantly inertial forces of objects in motion, which may adversely affect the results. The outlined testing procedure aims to address these issues by providing a suitable method for estimating the energy dissipation capacity in the case of UHPFRC. The new procedure shows a reasonable approach for testing and evaluating fibre-reinforced concrete under impact loading, although some technical difficulties related to the testing procedure emerged and need to be addressed in future research.

Czech name

—

Czech description

—

Type

D - Article in proceedings

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

S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

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

Article name in the collection

Design, Experiment and Analysis of Protective Structures - Proceedings of the 5th International Conference on Protective Structures

ISBN

978-83-89333-71-1

ISSN

—

e-ISSN

—

Number of pages

12

Pages from-to

322-333

Publisher name

Poznan University of Technology

Place of publication

Poznaň

Event location

Poznan

Event date

Aug 19, 2018

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

—