Type of damage | Damage morphology | Mechanism |
---|---|---|
Laddering | Enlargement of an initial hole by pulling out of successive knitted loops in the LLIN fabric structure following yarn breakage | |
Unravelling | Enlargement of an initial hole by unlooping of the yarns in the knitted LLIN fabric structure following initial yarn breakage | |
Secondary tearing | Tensile breakage of yarns within the fabric plane, in one or more directions. For example, after the LLIN is caught on a solid pointed object and then pulled in a perpendicular direction |