Effets de l?irradiation aux UV sur les propriétés mécaniques des matériaux composites polymères

The use of polymer matrix composites in civil engineering and construction (including offshore) is becoming increasingly attractive. Therefore, the mechanical performance as a function of outdoor environment, particulary after high intensity UV- exposures, is becoming a real issue. In this work, samples made out of monolithic vinylester as well as vinylester/glass-fiber composite we re exposed to UV-radiation. The mechanical behaviour of these samples was characterized mainly using nanoindentation. Laser Scanning Confocal Microscopy (LSCM) was used to quantify the topography of the samples that were roughened following UV-exposure. A method is he rein developed and is based on a cross-cut of samples and a polish of the transverse face providing a mirror finish needed for nanoindentation while avoiding the elimination of the exposed surface. This method is enabling the estimate of the local Young?s modulus and hardness as a function of exposure time, while specifying the thickness of the material affected by UV.

  • Authors:
    • CORDELLE, Aurélie
    • DRISSI-HABTI, Monssef
    • FORSTER, Aaron
    • CHIN, Joannie
  • Publication Date: 2013


  • French

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01497751
  • Record Type: Publication
  • Source Agency: Institut Francais des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)
  • Contract Numbers: 11S092, Démonstrateur de passerelle urbaine en ma
  • Files: ITRD
  • Created Date: Nov 7 2013 11:51AM