The fracture energy of fibre reinforced concrete under high strain rates

Publikation: Beitrag in Buch/Konferenzbericht/Sammelband/GutachtenBeitrag in KonferenzbandBeigetragenBegutachtung

Beitragende

Abstract

Fibre-reinforced concrete can offer decisive advantages for the dimensioning of structures against dynamic loadings such as explosions or impact. On the one hand, increasing ductility increases the deformability and also the energy absorption capacity. On the other hand, fibres can prevent flying debris. In this study, the material properties of fibre-reinforced concrete such as modulus of elasticity, tensile strength and fracture energy were determined based on spalling tests in the split Hopkinson bar. Concretes of the strength classes C20/25, C40/50 and C80/95 with steel fibre contents of 0 to 2.0 vol.-% and also with carbon and PP fibres were investigated. The results show an increase in the dynamic tensile strength and the dynamic modulus of elasticity with increasing fibre content. The addition of fibres also leads to an enormous increase in fracture energy, which is higher for steel fibres compared to carbon and PP fibres. Parts of this article were already published in Mosig et al. (2021).

Details

OriginalspracheEnglisch
TitelProceedings of the 26th International Conference on Structural Mechanics in Reactor Technology (SMiRT 26)
Redakteure/-innenInternational Assn for Structural Mechanics in Reactor Technology (IASMiRT)
Herausgeber (Verlag)Curran Associates
Seitenumfang10
ISBN (Print)9781713872795
PublikationsstatusVeröffentlicht - Juli 2022
Peer-Review-StatusJa

Konferenz

Titel26th International Conference on Structural Mechanics in Reactor Technology
KurztitelSMiRT26
Veranstaltungsnummer
Dauer10 - 15 Juli 2022
BekanntheitsgradInternationale Veranstaltung
Ort
StadtBerlin/Potsdam
LandDeutschland

Externe IDs

ORCID /0000-0002-1596-7164/work/142255662

Schlagworte