Damage mechanisms in thin stitched laminates subjected to low-velocity impact

This study examines the influence of stitching on the structural and damage response of thin carbon/epoxy [02/902]s laminates subjected to low-velocity impact. Impact tests were carried out on unstitched and stitched laminates and the nature and extent of damage at various impact energies was characterized by radiographic analyses. The main results of the study are illustrated and discussed to highlight the role and the potential of stitches for improving the impact damage resistance of this class of laminated composites