Page 379 - Engineered Interfaces in Fiber Reinforced Composites

360 Engineered interjaces in fiber reinforced composites

composites which has received little or no attention. It is expected that the damage
mechanisms will also be size or laminate thickness dependent.
In summary, it can be said that if through-the-thickness stitching can be effective
in improving interlaminar fracture resistance and impact damage tolerance, it is
important to identify the optimum stitching conditions, notably the stitch density
and stitch strand diameter, so as not to introduce any negative effects. Excessive
damage and misalignment of the in-plane reinforcement fibers are the major issues
associated with the use of through-the-thickness stitches which must be avoided.

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