AMT Seminar: Hierarchical carbon fibre reinforced plastics with tailored nanoparticle modification benefits and limitations

Dear colleagues,   

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

Email: fiedler@tuhh.de, christian.leopold@tuhh.de, Web Page: https://www.tuhh.de/kvweb

 

Keywords: Few Layer Graphene, Failure initiation, Matrix cracks, Fractography

Abstract

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 Bodo Fiedler
https://www.tuhh.de/alt/kvweb/institute/people/prof-dr-ing-habil-bodo-fiedler.html

About his group:
https://www.tuhh.de/alt/kvweb/research/overview.html