UHPFRC Resistance to Projectile Impact in Dependence on Fibre Content

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00337435" target="_blank" >RIV/68407700:21110/20:00337435 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/978-3-030-34123-7_7" target="_blank" >https://doi.org/10.1007/978-3-030-34123-7_7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-030-34123-7_7" target="_blank" >10.1007/978-3-030-34123-7_7</a>

Jazyk výsledku

angličtina

Název v původním jazyce

UHPFRC Resistance to Projectile Impact in Dependence on Fibre Content

Popis výsledku v původním jazyce

Ultra-high-performance fibre-reinforced concrete (UHPFRC) was subjected to projectile impact using in-service bullets. UHPFRC is an advanced cementitious composite with enhanced mechanical properties where high tensile strength and ductility benefit mainly from the disperse fibre reinforcement. Steel micro-fibres used in this study were straight and smooth with a tensile strength of 2800 MPa. The fibre content in the UHPFRC was set as the main test variable in the framework of this study. It was found that an increase in the fibre volume fraction resulted in an increase in both the tensile strength and the energy dissipation capacity. Cylinder compressive strength of the UHPFRC was determined to be 150 MPa. The UHPFRC slabs used as targets against full metal jacket soft lead core (FMJ-SLC) and full metal jacket mild steel core (FMJ-MSC) projectiles were 50 mm and 45 mm thin, respectively. Both projectiles were fired from the semi-automatic rifle. The weight of the projectiles was 8.04 g and muzzle velocity was determined to be 710 m/s. Damage parameters such as depth of penetration, crater diameter, residual velocity, residual penetration potential and debris fragment loss were determined. Based on the experimental observations it was found that the optimal fibre content in the UHPFRC mixture with respect to damage parameters induced by the high-speed projectile impact is about 2% by volume.

Název v anglickém jazyce

UHPFRC Resistance to Projectile Impact in Dependence on Fibre Content

Popis výsledku anglicky

Ultra-high-performance fibre-reinforced concrete (UHPFRC) was subjected to projectile impact using in-service bullets. UHPFRC is an advanced cementitious composite with enhanced mechanical properties where high tensile strength and ductility benefit mainly from the disperse fibre reinforcement. Steel micro-fibres used in this study were straight and smooth with a tensile strength of 2800 MPa. The fibre content in the UHPFRC was set as the main test variable in the framework of this study. It was found that an increase in the fibre volume fraction resulted in an increase in both the tensile strength and the energy dissipation capacity. Cylinder compressive strength of the UHPFRC was determined to be 150 MPa. The UHPFRC slabs used as targets against full metal jacket soft lead core (FMJ-SLC) and full metal jacket mild steel core (FMJ-MSC) projectiles were 50 mm and 45 mm thin, respectively. Both projectiles were fired from the semi-automatic rifle. The weight of the projectiles was 8.04 g and muzzle velocity was determined to be 710 m/s. Damage parameters such as depth of penetration, crater diameter, residual velocity, residual penetration potential and debris fragment loss were determined. Based on the experimental observations it was found that the optimal fibre content in the UHPFRC mixture with respect to damage parameters induced by the high-speed projectile impact is about 2% by volume.

Druh

C - Kapitola v odborné knize

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/FV10547" target="_blank" >FV10547: Zavedení ochranné bariéry z vysokohodnotného betonu do průmyslové výroby</a><br>

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název knihy nebo sborníku

Advanced Materials for Defense

ISBN

978-3-030-34122-0

Počet stran výsledku

7

Strana od-do

63-69

Počet stran knihy

154

Název nakladatele

Springer, Cham

Místo vydání

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Kód UT WoS kapitoly

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