2.1 Tensile strength, the maximum tensile force developed in a test specimen before rupture on a tensile test
carried to rupture under prescribed conditions. Tensile strength (as used here) is the force per unit width of test
specimen.
2.2 Stretch, the maximum tensile strain developed in the test specimen before rupture in a tensile test carried
to rupture under prescribed conditions. The stretch (or percentage elongation) is expressed as a percentage, i.e., one
hundred times the ratio of the increase in length of the test specimen to the original test span.
2.3 Tensile energy absorption (TEA), the work done when a specimen is stressed to rupture in tension under
prescribed conditions as measured by the integral of the tensile strength over the range of tensile strain from zero to
maximum strain. The TEA is expressed as energy per unit area (test span × width) of test specimen.
2.4 Tensile stiffness, the ratio of tensile force per unit width to tensile strain within the elastic region of the
tensile-strain relationship. The elastic region of the tensile-strain relationship is the linear portion of the load-elongation
relationship up to the elastic limit. The elastic limit is the maximum tensile force above which the load-elongation
relationship departs from linearity. (Tensile stiffness is numerically equivalent to E • t, where E is the modulus of
elasticity and t is sample thickness.)
2.5 Breaking length, the calculated limiting length of a strip of uniform width, beyond which, if such a strip
were suspended by one end, it would break of its own weight.
2.6 Tensile index, the tensile strength in N/m divided by grammage.
2.1 Tensile strength, the maximum tensile force developed in a test specimen before rupture on a tensile test
carried to rupture under prescribed conditions. Tensile strength (as used here) is the force per unit width of test
specimen.
2.2 Stretch, the maximum tensile strain developed in the test specimen before rupture in a tensile test carried
to rupture under prescribed conditions. The stretch (or percentage elongation) is expressed as a percentage, i.e., one
hundred times the ratio of the increase in length of the test specimen to the original test span.
2.3 Tensile energy absorption (TEA), the work done when a specimen is stressed to rupture in tension under
prescribed conditions as measured by the integral of the tensile strength over the range of tensile strain from zero to
maximum strain. The TEA is expressed as energy per unit area (test span × width) of test specimen.
2.4 Tensile stiffness, the ratio of tensile force per unit width to tensile strain within the elastic region of the
tensile-strain relationship. The elastic region of the tensile-strain relationship is the linear portion of the load-elongation
relationship up to the elastic limit. The elastic limit is the maximum tensile force above which the load-elongation
relationship departs from linearity. (Tensile stiffness is numerically equivalent to E • t, where E is the modulus of
elasticity and t is sample thickness.)
2.5 Breaking length, the calculated limiting length of a strip of uniform width, beyond which, if such a strip
were suspended by one end, it would break of its own weight.
2.6 Tensile index, the tensile strength in N/m divided by grammage.
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