Article (Scientific journals)
Experimental, analytical and numerical study of reinforced concrete beams impacted by deformable bodies at low velocities
Marquez Duque, Lucas; Le Sourne, Hervé; Rigo, Philippe
2024In International Journal of Impact Engineering, 192, p. 105027
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Keywords :
Analytical study; Deformable impactors; Drop-weight tests; Impact loads; Numerical study; Quasi-static tests; RC beams; Deformable impactor; Drop weight tests; Reinforced concrete beams; Civil and Structural Engineering; experimental study
Abstract :
[en] In this work, the structural behavior of Reinforced Concrete (RC) beams struck by rigid and deformable impactors at low velocities is studied. An experimental campaign consisting of three-point bending, crushing, and drop-weight tests is carried out to characterize and compare the quasi-static and dynamic behaviors of the colliding bodies. Three repetitions per configuration are tested to obtain reliable data and to check the consistency and repeatability of the proposed experiments. The results are accurately reproduced using Non-Linear Finite Element (NLFE) models to obtain insights regarding the influence of strain rates in the experiments. Furthermore, a simple analytical method that considers the deformability of both bodies through their corresponding force–displacement relationships is presented. The proposed model is observed to predict with a reasonable accuracy the contact force profiles and the deformations of both bodies in almost all of the studied scenarios, while being orders of magnitude faster than the NLFE simulations.
Disciplines :
Mechanical engineering
Author, co-author :
Marquez Duque, Lucas  ;  Université de Liège - ULiège > Urban and Environmental Engineering
Le Sourne, Hervé ;  Université de Liège - ULiège > Département ArGEnCo > Constructions hydrauliques et navales ; Icam School of Engineering - Nantes Campus, Carquefou, France ; Nantes University, Ecole Centrale de Nantes, CNRS, GeM, UMR 6183, Nantes, France
Rigo, Philippe  ;  Université de Liège - ULiège > Département ArGEnCo > ANAST (Systèmes de transport et constructions navales)
Language :
English
Title :
Experimental, analytical and numerical study of reinforced concrete beams impacted by deformable bodies at low velocities
Publication date :
October 2024
Journal title :
International Journal of Impact Engineering
ISSN :
0734-743X
Publisher :
Elsevier
Volume :
192
Pages :
105027
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique
Funding text :
The authors thank the Fonds de la Recherche Scientifique (FNRS, Belgium) for their support under a FRIA funding grant to the first author. Part of this work was performed within the framework of the West Atlantic Marine Energy Community (WEAMEC), granted by Icam School of Engineering, Pays de la Loire Region (France) and Europe (European Regional Development Fund) . Also, the authors would like to express their gratitude to Icaro Ladeira, Pierrick Guegan, and Alex Lejeau for their useful insights and assistance during the experimental campaign.
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