• français
    • English
    English
  • Ouvrir une session
Aide
Voir le document 
  •   Accueil de SAM
  • Institut de Mécanique et d’Ingénierie de Bordeaux (I2M)
  • Voir le document
  • Accueil de SAM
  • Institut de Mécanique et d’Ingénierie de Bordeaux (I2M)
  • Voir le document
JavaScript is disabled for your browser. Some features of this site may not work without it.

Hydrostatic compression on polypropylene foam

Article dans une revue sans comité de lecture
Auteur
ccVIOT, Philippe

URI
http://hdl.handle.net/10985/8257
DOI
10.1016/j.ijimpeng.2008.11.010
Date
2008
Journal
International Journal of Impact Engineering

Résumé

Models currently used to simulate the impact behaviour of polymeric foam at high strain rates use data from mechanical tests. Uniaxial compression is the most common mechanical test used, but the results from this test alone are insufficient to characterise the foam response to three-dimensional stress states. A new experimental apparatus for the study of the foam behaviour under a state of hydrostatic stress is presented. A flywheel was modified to carry out compression tests at high strain rates, and a hydrostatic chamber designed to obtain the variation of stress with volumetric strain, as a function of density and deformation rate. High speed images of the sample deformation under pressure were analysed by image processing. Hydrostatic compression tests were carried out, on polypropylene foams, both quasi statically and at high strain rates. The stress–volumetric strain response of the foam was determined for samples of foam of density from 35 to 120 kg/m3, loaded at two strain rates. The foam response under hydrostatic compression shows a non-linear elastic stage, followed by a plastic plateau and densification. These were characterised by a compressibility modulus (the slope of the initial stage), a yield stress and a tangent modulus. The foam was transversely isotropic under hydrostatic compression.

Fichier(s) constituant cette publication

Nom:
DUMAS_ijimpeg_viot_2008.pdf
Taille:
1.907Mo
Format:
PDF
Voir/Ouvrir

Cette publication figure dans le(s) laboratoire(s) suivant(s)

  • Institut de Mécanique et d’Ingénierie de Bordeaux (I2M)

Documents liés

Visualiser des documents liés par titre, auteur, créateur et sujet.

  • Réponse à l'impact de plaques composites épaisses préchargées en tension uniaxiale. 
    Communication avec acte
    GUILLAUD, Nicolas; FROUSTEY, Catherine; LATAILLADE, Jean-Luc; ccVIOT, Philippe; ccDAU, Frédéric (2013)
    This study concerns Carbon / epoxy composite plates. Three di erent thickness were investigated ([0°=45°=90°=45°]i)S for i = 2, 3 or 4 (5, 10 and 15mm thick). An instrumented falling-weight-impact test machine was used for ...
  • The influence of acrylate triblock copolymer embedded in matrix on composite structures’ responses to low-velocity impacts 
    Article dans une revue avec comité de lecture
    DENNEULIN, Sébastien; LEONARDI, Frédéric; LATAILLADE, Jean-Luc; ccVIOT, Philippe (Elsevier, 2012)
    In passive safety structures the use of composite materials has increased significantly recently due to their low specific mass and high energy absorption capacities. The purpose of this experimental study is to describe ...
  • Impact response of thick composite plates under uniaxial tensile preloading 
    Article dans une revue avec comité de lecture
    GUILLAUD, Nicolas; FROUSTEY, Catherine; ccVIOT, Philippe; ccDAU, Frédéric (Elsevier, 2014)
    This work focuses on the impact response of composite plates 5 mm thick subjected to uniaxial tension preload. Laminated carbon/epoxy with quasi-isotropic stacking sequence ([0/45/90/-45]2)S samples were used. Doehlert-type ...
  • Influence of the microstructure on the compressive behaviour of porous aluminas: From microstructural characterisation to fracture mechanisms 
    Article dans une revue avec comité de lecture
    ccHENRY, Quentin; ccVIOT, Philippe; ccLE BARBENCHON, Louise; ccCOSCULLUELA, Antonio; ccKOPP, Jean-Benoit (Elsevier BV, 2024-06)
    The mechanical response of porous aluminas under compressive loading was studied and compared with the fracture mechanisms. Aluminas with a wide range of pore sizes and porosity rates (1–60%) were produced to deconvolve ...
  • A thick cellular structural adhesive: Identification of its behavior under shear loading 
    Article dans une revue avec comité de lecture
    WETTA, Maxime; ccKOPP, Jean-Benoit; ccLE BARBENCHON, Louise; ccVIOT, Philippe (Elsevier BV, 2023-06)
    This study focuses on the link between the microstructure and the mechanical behavior under shear loading of a thick cellular structural adhesive (TCSA). X-ray microtomography and image post-processing were first used to ...

Parcourir

Tout SAMLaboratoiresAuteursDates de publicationCampus/InstitutsCe LaboratoireAuteursDates de publicationCampus/Instituts

Lettre Diffuser la Science

Dernière lettreVoir plus

Statistiques de consultation

Publications les plus consultéesStatistiques par paysAuteurs les plus consultés

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales