Simultaneous optimisation of geometry and graded fibre orientation distributions (C01)

• Subject Area: Mechanics
• Term: since 2025
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 525069572

The main objective of this sub-project is to optimise a fibre-reinforced plastic part with respect to both ge-ometry and fibre density and orientation distribution. This is achieved by creating a script-controlled FE simulation parametrised in both aspects and running it inside an automatic optimisation loop. The required material law incorporating a tensorial description of the fibre orientation is derived by homogenisation of a microstructural RVE (representative volume element) simulation. Incorporating constraints from manufac-tur-ing is a crucial step to obtain feasible results and also doubles as method to regularise the mathematical structure of the optimisation problem.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 402: Intelligent production technologies for lightweight plastic structures with load-dedicated 3D grading of the reinforcement architecture
• Applicant Institution: Technische Universität Chemnitz
• Project Heads: Professor Dr.-Ing. Jörn Ihlemann; Dr.-Ing. Hans Wulf