Numerical and experimental investigations of piercing fibre-reinforced thermoplastics

Research output: Contribution to book/conference proceedings/anthology/reportConference contributionContributedpeer-review


The joining of continuous fibre-reinforced thermoplastic composites (TPC) by means of plastic deformation often results in a complex material structure in the forming zone. Especially process- and material-related parameters have high influence on the local deformation behaviour and therefore on the properties of the joint. In this paper, the focus is on mechanical joining processes based on the principle of moulding holes by a tapered pin. For the investigations, a simplified test is used in which the pin is pushed through a heated TPC plate in the thickness direction. By the pin movement the fibres and molten matrix are displaced radially and along the tool motion direction. Detailed investigations of the resultant material structure by computed tomography and numerical simulations are performed with varying pin tool geometries with bidirectional TPC material. For numerical analysis, the Arbitrary-Lagrangian-Eulerian method combined with a multi-filament approach is used. The result show that the tool geometry has a strong influence on the piercing force, the resultant material structure, and the occurring phenomena. It could be shown, that the simulation is capable to predict the resultant material structure.


Original languageEnglish
Title of host publicationSheet Metal 2023 - 20th International Conference on Sheet Metal
EditorsMarion Merklein, Hinnerk Hagenah, Joost R. Duflou, Livan Fratini, Fabrizio Micari, Paulo Martins, Gerson Meschut
Number of pages8
ISBN (Electronic) 978-1-64490-241-7
Publication statusPublished - 17 Mar 2023

Publication series

Series Materials Research Proceedings


Title20th International Conference on Sheet Metal
Abbreviated titleSheMet 2023
Conference number20
Duration2 - 5 April 2023
LocationFriedrich-Alexander-Universität Erlangen-Nürnberg

External IDs

Scopus 85152657691
ORCID /0000-0003-0014-3039/work/142233868
ORCID /0000-0003-2689-1203/work/142234011
ORCID /0000-0003-1370-064X/work/142243854
ORCID /0000-0002-0820-8936/work/142245878
ORCID /0000-0003-2653-7546/work/142249405



  • Joining, Simulation, Fluid-Structure Interaction