Loop and Knot Yarn Strength
topic
Loop strength tests two interlocked yarn loops under tensile load to reveal fibre-to-fibre abrasion and bending failure at the loop junction, while knot strength ties a standard overhand knot and measures breaking load; both indicate fibre flexibility and surface integrity beyond linear tensile capacity.
Role
Predicts yarn performance in woven fabric interlacing zones, rope applications, and medical sutures where stress concentration at curvature points governs failure rather than axial tensile strength alone.