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Faculté des Sciences appliquées
Faculté des Sciences appliquées
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Master thesis and internship[BR]- Master's thesis : The validation process of virtual crash testing of vehicle restraint system[BR]- Integration Internship

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Orabi, Tarek ULiège
Promoteur(s) : Duysinx, Pierre ULiège
Date de soutenance : 27-jui-2022/28-jui-2022 • URL permanente : http://hdl.handle.net/2268.2/14498
Détails
Titre : Master thesis and internship[BR]- Master's thesis : The validation process of virtual crash testing of vehicle restraint system[BR]- Integration Internship
Titre traduit : [fr] MODÈLES DE VÉHICULES POUR LES SIMULATIONS DE CRASH
Auteur : Orabi, Tarek ULiège
Date de soutenance  : 27-jui-2022/28-jui-2022
Promoteur(s) : Duysinx, Pierre ULiège
Membre(s) du jury : Himpe, Jeffrey 
Noels, Ludovic ULiège
Bruls, Olivier ULiège
Langue : Anglais
Nombre de pages : 73
Discipline(s) : Ingénierie, informatique & technologie > Ingénierie aérospatiale
Organisme(s) subsidiant(s) : GDTech
Intitulé du projet de recherche : The validation process of virtual crash testing of vehicle restraint system
Public cible : Etudiants
Institution(s) : Université de Liège, Liège, Belgique
Diplôme : Master en ingénieur civil en aérospatiale, à finalité spécialisée en "aerospace engineering"
Faculté : Mémoires de la Faculté des Sciences appliquées

Résumé

[fr] The main objective of this work is to validate and verify the virtual crash test of the vehicle restraint system by using Hyper-mesh software to generate the mesh and LS-Dyna
software for pre and post-processing. The test was conducted in compliance with European standard EN 1317. These standards are the impact severity index level for the vehicle,
the deformation of the system which is expressed as working width and vehicle intrusion
including the normalized values, and the containment level of the vehicle. The barrier that
has been used in this test is 3N.TU-BPL.71 and two types of vehicles TB11 and TB61 were
tested. First, the model is built up followed by meshing each part separately using the hyper mesh software then assembling the parts and setting the parameters, constitutive law,
and the boundary condition using LS-Dyna software. Then, three tests were performed the
first one is just the barrier with applied gravity to check the numerical stability, the second
test is the barrier with vehicle TB11, and the last test is the barrier with vehicle TB61. The
results were validated in accordance with the European standard properly whereas the deformation of some parts of the barrier against TB61 was not as same as the physical one
whereas for TB11 the deformation was almost the same. To conclude, the virtual test and
the physical test have similarities and differences as it is impossible to reproduce the same
deformation as in reality, taking into account that the virtual test is a numerical way aimed
to have approximation results not the same results since the numerical way based on many
assumptions. For example, the discretization in space is the first error produced in the software, and the time discretization by using an explicit scheme is the second error produced
in the software.


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Access tfe_5006.pdf
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Taille: 156.03 kB
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Access Master-thesis-report.pdf
Description: Master thesis report
Taille: 14.77 MB
Format: Adobe PDF
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Access Master-thesis-summary.pdf
Description: Master thesis summary
Taille: 141.03 kB
Format: Adobe PDF

Auteur

  • Orabi, Tarek ULiège Université de Liège > Master ingé. civ. aérospat., à fin.

Promoteur(s)

Membre(s) du jury

  • Himpe, Jeffrey GDTech
  • Noels, Ludovic ULiège Université de Liège - ULiège > Département d'aérospatiale et mécanique > Computational & Multiscale Mechanics of Materials (CM3)
    ORBi Voir ses publications sur ORBi
  • Bruls, Olivier ULiège Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire des Systèmes Multicorps et Mécatroniques
    ORBi Voir ses publications sur ORBi
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  • Nombre total de téléchargements 2










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