Fibre-reinforced plastic (FRP) composites—ranging from continuously fibre-reinforced structures to components reinforced with short or long fibres—have become indispensable in a wide array of industries, including automotive, aerospace, energy, and construction. Their increasing adoption stems not only from their outstanding specific mechanical properties but also from the high design freedom they offer in tailoring both geometry and material composition. A particularly promising frontier lies in the simulation-driven optimization of FRP components with graded fibre distributions. These allow local adaptation of stiffness, strength, and failure behaviour to the specific performance requirements of complex load cases. Advances in computational methods now make it possible to design and virtually validate such graded structures, where fibre orientation, volume content, and reinforcement architecture vary continuously across the part. This enables truly functionally optimized, lightweight designs with unprecedented material efficiency and mechanical performance. This minisymposium will provide a platform for researchers and practitioners to exchange insights on the latest developments in simulation, modeling, and optimization of fibre-reinforced plastic components, with a focus on: • Multi-scale and multi-physics simulation of FRP materials and processes • Optimization of fibre architecture for load-adaptive structures • Computational design and validation of functionally graded composites • Process-structure-property relationships in FRP manufacturing • Integration of simulation and experimental validation • Application case studies involving structurally and materially optimized components