Testing & Quality Control

Tear to Tensile Strength Ratio Calculator

A tightly set fabric can pass tensile and fail tear badly. The ratio is where that shows.

Test Results Same fabric direction
N
N
g/m²
Specification Minimum acceptable
%

Tear to Tensile Ratio

— %

Tear strength as a share of tensile strength

Normalised Strength

Tear Index
— mN·m²/g
Tensile per Unit Weight
— N per g/m²
Tear per Unit Weight
— N per g/m²
Margin over Minimum
— %

Tear strength depends on yarn mobility. Resin finishing and very high sett both lock yarns in place and cut tear strength sharply while tensile barely moves.

Tear to Tensile Strength Ratio Calculator — free, with the formula and a worked example, at Textile School.