Meso-structural optimization design of multifarious and complex fabric rubber composite structure

Fabric clothes are widely used to toughen the fabric rubber composite structure due to their strong designability and flexibility. The diversity and complexity of the meso-structural forms of fabric clothes bring great challenges to the efficient design of meso-structures of fabric rubber composite structure. The current studies are difficult to design the fabric rubber composite structure with complex structural forms whatever at macroscale or mesoscale. In this paper, the multiscale optimization design method of fabric rubber composite structure is established. Initially, the anisotropic theoretical models of the textile fabric rubber composite and reticulated fabric rubber composite are proposed based on meso-structural forms of the textile fabric and reticulated fabric. Then, the multiscale optimization framework and optimization process of fabric rubber composite structure, as well as the calculation methods of constraints and optimization objectives are established. Finally, the optimal meso-structures of textile fabric and reticulated fabric obtained by three optimization algorithms are compared. The results show that the difference of optimal meso-structures obtained by the three optimization algorithms is mainly reflected in the reticulated fabric. It is expected that the multiscale optimization design method has important scientific guiding significance for the performance improvement of fabric rubber composite structure.