Mechanical behavior of woven fabric reinforced flexible composites under repeated loading

To further investigate the mechanical behavior of textile reinforced flexible composites and better design and use the textile reinforced flexible composites,experiments were conducted of doublelayer woven fabric reinforced flexible composites under repeated loading. The variation of maximum elongation and residual deformation with loading cycles were discussed based on curves of load vs. elongation. The change tendency of bilinear zone elastic modulus and yield strength with loading cycles were also analyzed. The experimental results show that the woven fabric reinforced flexible composites exhibit obvious inelasticity,significant nonlinearity,and express bilinearity under low stress level. Furthermore,the degree of inelasticity and nonlinearity, bilinear zone elastic modulus, and yield strength,etc. are governed by the load level,as well as loading cycles.