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Status : Active
Standard Type : Main
Document No : ISO 527-5:2021
Document Year : 2021
Pages : 17
Edition : 3
Section Volume : Composites and reinforcement fibres (ISO/TC 61/SC 13.)
NOTE Isotropic and orthotropic reinforced materials are covered by ISO 527-4.
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 conditions defined.
The test method is suitable for all polymer matrix systems reinforced with unidirectional fibres and which meet the requirements, including failure mode, set out in this document.
The method is suitable for composites with either thermoplastic or thermosetting matrices, including preimpregnated materials (prepregs). The reinforcements covered include carbon fibres, glass fibres, aramid fibres and other similar fibres. The reinforcement geometries covered include unidirectional (i.e. completely aligned) fibres and rovings and unidirectional fabrics and tapes.
The method is not normally suitable for multidirectional materials composed of several unidirectional layers at different angles (see ISO 527-4).