Fracture behaviour of ceramic blocks with thin-walled cellular structures under dynamic loadings

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21260%2F18%3A00314921" target="_blank" >RIV/68407700:21260/18:00314921 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21110/18:00314921

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0263823117304925" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0263823117304925</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.tws.2017.10.050" target="_blank" >10.1016/j.tws.2017.10.050</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fracture behaviour of ceramic blocks with thin-walled cellular structures under dynamic loadings

Popis výsledku v původním jazyce

This paper lays the foundation for the development of a high-load bearing energy absorbing system with controlled deformation. Brittle ceramic blocks made of bricks with thin-walled cellular structures are presented and tested with impact loading. The authors demonstrate that such blocks are able to absorb impact energy because of the gradual brittle fracture process which occurs in the cellular structures. Full-scale specimens were subjected to laboratory impact tests: two non-deformable flat-nosed cart tests as well as two full-scale field crash tests involving passenger vehicles with crumple zones. The experiments were designed specifically to prove that block specimens are able to gradually absorb different levels of impact energy and to examine the applicability of using such blocks in the design of cross-drainage culverts. Based on a comparison of the two collisions with test culverts, the authors show that consequences of the collision can be significantly reduced by using brittle blocks with cellular structures in culverts. In fact, the crumple zone of the passenger vehicle which collided with a brittle block culvert was not crumpled; vehicle bounce off was eliminated and gradual deceleration of the vehicle was recorded.

Název v anglickém jazyce

Fracture behaviour of ceramic blocks with thin-walled cellular structures under dynamic loadings

Popis výsledku anglicky

This paper lays the foundation for the development of a high-load bearing energy absorbing system with controlled deformation. Brittle ceramic blocks made of bricks with thin-walled cellular structures are presented and tested with impact loading. The authors demonstrate that such blocks are able to absorb impact energy because of the gradual brittle fracture process which occurs in the cellular structures. Full-scale specimens were subjected to laboratory impact tests: two non-deformable flat-nosed cart tests as well as two full-scale field crash tests involving passenger vehicles with crumple zones. The experiments were designed specifically to prove that block specimens are able to gradually absorb different levels of impact energy and to examine the applicability of using such blocks in the design of cross-drainage culverts. Based on a comparison of the two collisions with test culverts, the authors show that consequences of the collision can be significantly reduced by using brittle blocks with cellular structures in culverts. In fact, the crumple zone of the passenger vehicle which collided with a brittle block culvert was not crumpled; vehicle bounce off was eliminated and gradual deceleration of the vehicle was recorded.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/VI20172020061" target="_blank" >VI20172020061: Výzkum, vývoj, testování a hodnocení prvků kritické infrastruktury</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Thin-Walled Structures

ISSN

0263-8231

e-ISSN

1879-3223

Svazek periodika

122

Číslo periodika v rámci svazku

January

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

597-605

Kód UT WoS článku

000419410000048

EID výsledku v databázi Scopus

2-s2.0-85033230016