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Proceedings Paper

Micro-mechanical properties of fiber composites characterized by X-ray refraction (Invited Paper)
Author(s): Volker Trappe; Manfred Hentschel; Heinz Ivers
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Paper Abstract

Fiber Reinforced Plastics (FRP) are increasingly applied in transportation systems (aircraft, railway, automotive) and infrastructure industries due to the good specific properties of high strength at low weight. Advanced FRP structures have to endure high mechanical and environmental loading. Therefore the durability and reliability depends much more on the micro mechanical properties as on the global strength. X-ray refraction topography is a powerful tool for the characterization of inner surfaces in materials. Applied to fiber composites the presented investigations give information about the mean diameter of the fibers, orientation and the quality of impregnation. Strong correlations were found between fiber matrix debonding and micro cracking and the stress state due to mechanical loading. Additionally a new method for a quantitative determination of transverse and shear strength in a complex laminate is presented. Therefore the X-Ray refraction technique is applied on-line during tensile load of specimens.

Paper Details

Date Published: 9 May 2005
PDF: 10 pages
Proc. SPIE 5766, Testing, Reliability, and Application of Micro- and Nano-Material Systems III, (9 May 2005); doi: 10.1117/12.600967
Show Author Affiliations
Volker Trappe, Federal Institute for Materials Research and Testing (Germany)
Manfred Hentschel, Federal Institute for Materials Research and Testing (Germany)
Heinz Ivers, Federal Institute for Materials Research and Testing (Germany)


Published in SPIE Proceedings Vol. 5766:
Testing, Reliability, and Application of Micro- and Nano-Material Systems III
Robert E. Geer; Norbert Meyendorf; George Y. Baaklini; Bernd Michel, Editor(s)

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