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Numerical Investigation of the In-Plane Shear Behaviour of Aligned Discontinuous Fibre Composites under Processing Conditions

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Abstract:

Aligned discontinuous fibre reinforced composites (ADFRC) have demonstrated an improved formability for small to medium sized parts with complex geometries compared to the continuous fibre based prepreg due to their stretchability along the fibre direction. The process simulation tool developed for this class of materials so far mostly concerns their tensile behaviour along the fibre direction. However, neglecting other deformation modes like the in-plane shear in a forming simulation may pose risks for the correct prediction of formed shape. This study verified a strategy which adopts previously developed analytical micromechanical models for tensile and in-plane shear deformation of ADFRCs, in a finite element framework. The implementation is validated by comparing results from virtual shear tests against experiments at different temperatures. This was then followed by virtual forming experiments on a doubly curved geometry, in which the tensile and shear properties of the material were varied separately to study the effects of each deformation mechanism on the simulated forming behaviour of the material.

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Periodical:

Materials Science Forum (Volume 1182)

Pages:

41-50

DOI:

https://doi.org/10.4028/p-SiV9h3

Citation:

Cite this paper

Online since:

April 2026

Authors:

Hao Yuan*, Burak Ogun Yavuz, Yuncong Feng, Ian Hamerton, Byung Chul Kim, Stephen R. Hallett, Jonathan P.H. Belnoue

Keywords:

Aligned Discontinuous Fibres, Forming Simulation, In-Plane Shear

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Creative Commons CC BY 4.0

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* - Corresponding Author

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