Characterisation of tape-based carbon fibre thermoplastic discontinuous composites for energy absorption

Tape-based discontinuous composite is a relatively new type of composite material that offers improved mechanical properties for similar process-ability compared to Sheet Moulding Compound or Bulk Moulding Compound. This makes it potentially attractive for the automotive industry. In this paper, a thin-ply carbon fibre reinforced polypropylene-based discontinuous composite is studied. Mechanical tests are performed to obtain the tensile, compression and shear behaviour of the material. The energy absorption via tearing is also studied to assess the suitability of the material for energy absorption applications, such as crash-boxes. The tearing test results show a large degree of plastic deformation and an advancing damage front leading to higher specific energy absorption via tearing compared to conventional composite materials.

Automated summary

This study focuses on a thin-ply carbon fibre reinforced polypropylene-based discontinuous composite, investigating its mechanical properties through tests such as tensile, compression, and shear behavior. The study also examines the energy absorption capabilities of the material via tearing, showing promising results compared to traditional composite materials.