• français
    • English
    English
  • Ouvrir une session
Aide
Voir le document 
  •   Accueil de SAM
  • Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3)
  • Voir le document
  • Accueil de SAM
  • Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3)
  • Voir le document
JavaScript is disabled for your browser. Some features of this site may not work without it.

In situ damage mechanisms investigation of PA66/GF30 composite: Effect of relative humidity

Article dans une revue avec comité de lecture
Auteur
ARIF, Muhamad Fatikul
ccMERAGHNI, Fodil
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
CHEMISKY, Yves
DESPRINGRE, Nicolas
ROBERT, Gilles
242739 Solvay Engineering Plastics

URI
http://hdl.handle.net/10985/9949
DOI
10.1016/j.compositesb.2013.11.001
Date
2014
Journal
Composites Part B: Engineering

Résumé

Damage mechanisms of injection molded polyamide-66/short glass fiber 30 wt% composite (PA66/GF30) were analyzed using in situ SEM mechanical tests on specimens conditioned under three relative humidity contents (RH = 0%, 50% and 100%). The validity of these in situ analyses was confirmed by Xray micro-computed tomography (lCT) observations on tensile loaded specimens. Experimental results demonstrated that relative humidity (RH) conditions influence strongly the damage level and damage mechanisms. Indeed, for specimen with RH = 0%, damage initiation occurs at significantly higher load level than those in RH = 50% and RH = 100% specimens. The higher relative humidity condition also results in higher damage level. Damage chronologies have been proposed as damage initiation in the form of fiber–matrix debonding occurs at fiber ends and more generally at locations where fibers are close to each other due to the generation of local stress concentration (for all studied RH contents), and first fiber breakages occur (RH = 0%). These debonded zones further propagate through fiber–matrix interface (for all studied RH contents), and new fiber breakages develop (RH = 0%). At high relative flexural stress, matrix microcracks appear and grow regardless the RH contents. For RH = 100%, these microcracks are also accompanied by many matrix deformation bands. Subsequently, they lead to the damage accumulation and then to the final failure.

Fichier(s) constituant cette publication

Nom:
LEM3_COMPARTB_2014_MERAGHNI.pdf
Taille:
2.210Mo
Format:
PDF
Voir/Ouvrir

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

  • Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3)

Documents liés

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

  • Multi-scale viscoelastic damage model of short glass fiber reinforced thermoplastics under fatigue loading 
    Communication avec acte
    DESPRINGRE, Nicolas; CHEMISKY, Yves; ARIF, Muhamad Fatikul; ROBERT, Gilles; ccMERAGHNI, Fodil (2014)
    This work presents a new micromechanical fatigue damage model for reinforced thermoplastic composites. The study aims at modeling high cycle fatigue damage of a short glass fiber reinforced polyamide-66. The developed ...
  • In situ SEM damage mechanisms investigation of short glass fiber reinforced polyamide composite 
    Communication avec acte
    ARIF, Muhamad Fatikul; DESPRINGRE, Nicolas; CHEMISKY, Yves; ROBERT, Gilles; ccMERAGHNI, Fodil (2013)
    Injection molded polyamide composite reinforced with short glass fibers has been widely used in automotive industry due to its high strength to weight ratio and the ability of injection process to produce complex parts. A ...
  • Multiscale fatigue damage characterization in short glass fiber reinforced polyamide-66 
    Article dans une revue avec comité de lecture
    ARIF, Muhamad Fatikul; CHEMISKY, Yves; ROBERT, Gilles; ccFITOUSSI, Joseph; ccMERAGHNI, Fodil; ccSAINTIER, Nicolas (Elsevier, 2014)
    This paper aims at studying fatigue damage behavior of injection molded 30 wt% short glass fiber reinforced polyamide-66 composite (PA66/GF30). The evolution of dynamic modulus, hysteresis area, cyclic creep and temperature ...
  • Fatigue damage investigation of PA66/GF30 by X-Ray microtomography 
    Conférence invitée
    ARIF, Muhamad Fatikul; ccMERAGHNI, Fodil; ccSAINTIER, Nicolas; CHEMISKY, Yves; ccFITOUSSI, Joseph; ROBERT, Gilles (2014)
    Damage behavior of dry as molded, 30 wt% short glass fiber reinforced polyamide-66 (PA66/GF30) under fatigue loading has been investigated by X-ray micro-computed tomography (μCT). Based on visual observation on μCT images, ...
  • Micromechanical Fatigue Visco-Damage Model for Short Glass Fiber Reinforced Polyamide-66 
    Communication avec acte
    DESPRINGRE, Nicolas; CHEMISKY, Yves; ROBERT, Gilles; ccMERAGHNI, Fodil (Ibrahim Karaman, Raymundo Arróyave and Eyad Masad / Wiley, 2015)
    This work presents a micromechanical fatigue damage model developed for short glass fiber reinforced PA66. It has been developed to predict the high cycle fatigue behavior of PA66/GF30. The model is based on an extended ...

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