Strain mapping of high performance fibres in textile architectures

This paper investigates the influence of interlacing architectures on micro- and meso-scale strain distribution in high performance fibres using Raman spectroscopy. In the present study Vectran fibre was used as a reinforcement to produce single layer plain-weave composite lamina. Infrared Raman spectroscopy has been used to investigate the deformation behaviour of the Vectran fibres and in this study the same technique extended to measure the deformation behaviour of the Vectran fibres within the composite lamina. Local fibre strain and strain mapping for the representative unit cell of plain weave composite are investigated and it's found that the stresses are concentrated at the edges of the unit cell due to the interlacing mechanism.