Adhesion test of resin-infused basalt fibers for wind energy applications

Rotor wind blades are principally made of E-glass fibers reinforcement into an epoxy resin. This fibers have already reached the limit of their mechanical properties, therefore new materials are needed.

Necessary rock studies of the gabbro and andesite basalt groups for the suitability as the raw material base for the production of continuous basalt fiber (CBF). A unique technique including laboratory melting and pilot-industrial melting at the high-tech equipment.

On one hand, carbon fibers offer a higher level in both stiffness and strength, but come at a significantly higher price. Basalt fibers, on the other hand, represent a viable alternative to E-glass, with better mechanical properties at a comparable price.

The strength of basalt fibers can be fruitfully used in wind energy applications if the strength of the fibers is transmitted to the matrix. Therefore, the fiber-matrix-adhesion is a crucial parameter that characterize the composite’s quality. The aim of this paper is to present the possibility for different tests methods concerning fiber-matrix-adhesion.

W. Happach, D. Pico, A. Lüking and T. Gries
ITA, RWTH Aachen University, Aachen, Germany.



Companies: ITA, Mechanical Properties, RWTH

Countries: Germany

Industries: Energy

Terms: Basalt fiber application, Mechanical characteristics, wind energy

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