Experimental analysis of total energy absorption capacity in RC beams subjected to drop weigh impact
Artikel i vetenskaplig tidskrift, 2025

Reinforced concrete (RC) protective structures require a large energy absorption capacity if they are to effectively withstand impulse loading due to blast or impact. Such structures may be subjected to both single and repeated impulse loading but there are just a few studies for the latter case. Therefore, in this study, experiments were conducted on RC beams, which were subjected to single or repeated drop-weight impacts. The beam response during impact was studied using a high-speed camera and digital image correlation. To determine the total energy absorption capacity, the impact-loaded beams were subjected to static loading until failure and the results compared to those of statically loaded reference beams. The total energy absorption capacity was of the same order or higher for beams previously subjected to impact loading, with a strong impact resulting in a greater increase. For tests in which the total impact energy was kept constant, repeated impact loading caused increased local damage, whilst decreasing the total energy absorption capacity.

digital image correlation

experiments

drop-weight impact

energy absorption capacity

repeated impacts

reinforced concrete

Författare

Morgan Johansson

Norconsult AB

Chalmers, Arkitektur och samhällsbyggnadsteknik, Konstruktionsteknik

Joosef Leppänen

Chalmers, Arkitektur och samhällsbyggnadsteknik, Konstruktionsteknik

Mathias Flansbjer

RISE Research Institutes of Sweden

Fabio José Lozano Mendoza

Chalmers, Arkitektur och samhällsbyggnadsteknik, Konstruktionsteknik

Jack Jönsson

Rochla Bygg

Josef Makdesi

SWECO

Anton Stenseke

Tyréns AB

International Journal of Protective Structures

2041-4196 (ISSN) 2041420x (eISSN)

Vol. In Press

Dynamisk belastning av betongkonstruktioner

Myndigheten för samhällsskydd och beredskap (2021-14924), 2022-01-01 -- 2025-12-31.

Ämneskategorier (SSIF 2025)

Samhällsbyggnadsteknik

DOI

10.1177/20414196251361155

Relaterade dataset

Dataset of article: Experimental analysis of total energy absorption capacity in RC beams subjected to single or repeated drop-weight impacts [dataset]

DOI: 10.5281/zenodo.12578464

Mer information

Senast uppdaterat

2025-08-18