Analytical simulation and experimental validation of viscoplastic bending response of textile-reinforced composites for CubeSats

This study introduces an innovative approach for analyzing bending deformation and strength in textilereinforced laminated composites, which is crucial for CubeSat structures. Our research develops a dual-scale modelling framework: a microscale model capturing the detailed viscoelastic-viscoplastic behaviour of fibres and matrices and a mesoscale model that integrates this with textile geometry, advanced shear deformation theories, and distributed damage effects. Extensive laboratory experiments validate our model, confirming its accuracy in predicting the composite behaviour under varied conditions. This work notably enhances the understanding and prediction of textile-reinforced composites, offering significant implications for CubeSat structural design and performance.