EUROMECH Colloquium 551 aims to focus on developments in the mechanics of fibre-reinforced materials, including theoretical, analytical and experimental developments and their applications. The main concern will be with the linear and nonlinear elastic, viscoelastic and plastic behaviour of fibre-reinforced solids but will also include fluid-like behaviour and constitutive modelling. The type of materials to be considered could range from soft solids such as biological tissues and fibre-reinforced polymers to harder materials such as carbon-fibre or glass-fibre reinforced materials. There will be particular interest in the effect of fibre reinforcement of material integrity and stability from both the static and dynamic perspectives.