This Mini-Symposium will focus on the recent advancements in the computational multi-scale and multiphysics modelling of fibres, fibrous networks, and fibre-composite materials. The objective of the Mini-Symposium is to identify commonalities across different classes of fibrous materials and bring together the corresponding research communities. The Mini-Symposium will cover a wide range of relevant topics, including: • Fibre constitutive descriptions and time-dependent behaviour; • Multiscale numerical strategies for fibrous materials and fibre reinforced composites; • Multiphysics interactions in fibrous materials and fibre reinforced composites; • Damage and fracture mechanisms in fibrous materials and fibre reinforced composites; • Design and optimization of fibrous materials and composites; • Data-driven and AI methods; • Multiscale experimental characterization techniques in relation with modelling; • Time-dependent behaviour of networks and composites; • System identification and validation; • Uncertainty quantification in multiscale fibrous material modelling; • Thermal and moisture transport in fibrous materials. We invite researchers from academia and industry, at all career stages, to share their insights and expertise.