In this paper, the effect of utilizing hollow polyester fibers as reinforcement in composite material in comparison with solids is investigated. The three-point bending impact test is carried out to study the impact behavior and mode of failure of composites. After that, the finite element method is used for theoretical investigation and modeling the behavior of two different reinforced composites during impact tests. It was found that the fiber–matrix interface failure is the most dominant mode of failure and the crack was initiated at the middle of the bottom surface of composites. It was also found that the impact resistance of the hollow fiber composite is more than the others. Theoretical results showed good correlation with experimental results as well. The stress distribution and the maximum value of strain energy density was found as two factors which lead to improvement in the impact behavior of hollow fiber composites.
- Impact behavior, finite element analysis, modeling, filament winding, strain energy density
Nasr-Isfahani, M., Amani Tehran, M., Latifi, M., Halvaei, M., & Warnet, L. (2018). Experimental and theoretical investigation of hollow polyester fibers effect on impact behavior of composites. Journal of Industrial Textiles, 47(7), 1528-1542. https://doi.org/10.1177/1528083717699367