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  4. Nondestructive investigation of fibre reinforced composites by X-ray computed tomography
 
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1989
Conference Paper
Title

Nondestructive investigation of fibre reinforced composites by X-ray computed tomography

Abstract
The quality of fibre composites depends on -the distribution on fibre- and matrix-material -size and concentration of pores -size and location of delaminations. For optimzation processes during fabrication nondestructive testing methods are required. The X-ray computed tomography (CT) is a powerful tool to determine the density distribution in such materials. With a modified medical CT-system defects and inhomogeneities in fibre reinforced components can be detected. But this system only resolves details in the order of magnitude of 5 mm. Because even smaller defects and changes in density can cause a damage higher detectability and resolution are demanded. This asks for special X-ray sources and detector systems. This contribution discusses the requirements for a high resolution X-ray CT unit and represents a new microfocal CT system with a resolution capability in the order of magnitude 10 mym. Results of investigations of fibre reinforced composites with the modified medical CT-syst em and the bigh resolution tomography unit are presented.
Author(s)
Hirsekorn, S.
Maisl, M.
Reiter, H.
Scherer, T.
Mainwork
Nondestructive Characterization of Materials III  
Conference
International Symposium on Nondestructive Characterization of Materials 1988  
Language
English
Fraunhofer-Institut für Zerstörungsfreie Prüfverfahren IZFP  
Keyword(s)
  • composite

  • defect

  • delamination

  • fibre distribution

  • medical computed tomography

  • microfocal computed tomography

  • non-destructive testing

  • porosity

  • X-ray computed tomography

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