1 Scope
This document specifies the test conditions for the determination of the tensile properties
of isotropic and orthotropic fibre-reinforced plastic composites, based upon the general
principles given in ISO 527‑1.
NOTE 1 Unidirectional reinforced materials are covered by ISO 527‑5.
The methods are used to investigate the tensile behaviour of the test specimens and
for determining the tensile strength, tensile modulus, Poisson's ratios and other aspects of the tensile stress-strain relationship under the defined conditions.
The test method is suitable for use with the following materials:
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— fibre-reinforced thermosetting and thermoplastic composites incorporating non-unidirectional
reinforcements such as mats, woven fabrics, woven rovings, chopped strands, combinations
of such reinforcements, hybrids, rovings, short or milled fibres or preimpregnated
materials (prepregs);
NOTE 2 Injection moulded specimens are covered by ISO 527‑2.
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— combinations of the above with unidirectional reinforcements and multidirectional
reinforced materials constructed from unidirectional layers, provided such laminates
are symmetrical;
NOTE 3 Materials with completely or mainly unidirectional reinforcements are covered by ISO 527‑5.
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— finished products made from materials mentioned above.
The reinforcement fibres covered include glass fibres, carbon fibres, aramid fibres
and other similar fibres.