AMT Seminar: Hierarchical carbon fibre reinforced plastics with tailored nanoparticle modification benefits and limitations
In the seminar series in aerospace manufacturing technologies, we are presenting invited speakers with selected topics in the field of novel manufacturing technologies.
The next seminar talk will be given by Prof. Bodo Fiedler from the Institute of Polymer and Composites from TU Hamburg
Hierarchical carbon fibre reinforced plastics with tailored nanoparticle modification – benefits and limitations
Bodo Fiedler1, Christian Leopold1,
1Institute of Polymers and Composites, Hamburg University of Technology,
Denickestraße 15, D-21073 Hamburg, Germany
Keywords: Few Layer Graphene, Failure initiation, Matrix cracks, Fractography
A tailored nanoparticle modification approach for fibre reinforced polymers (FRP) is presented that allows exact analysis of the impact of a nanoparticle matrix modification in either 0°- or 90°-layers of cross-ply laminates on the mechanical properties and damage mechanisms. A modification of the 0°-layers unexpectedly increases the quasi-static tensile strength, although dominated by fibre properties. Positive crack stopping effects as well as negative effects, such as accelerated delamination growth, are discussed. The applicability of nanoparticle modified resin systems to improve the performance of FRP-laminates is sensitive to the loading case. For laminates only loaded in tension a modification appears to be advantageous, whereas in case of bending or compression loads the effect of nanoparticles is ambiguous and should be applied carefully.
About his group: