ISO 527-4，ISO 527-5，ASTM D3039，ASTM D5083，EN 2561，EN 2597Tensile Properties of Polymer Matrix Composite Materials

Applications:

ASTM D3039 is a widely used standard for determining the tensile properties of composite materials. More specifically, this standard applies to composites that consist of a polymer matrix reinforced by either continuous or discontinuous high modulus fibers.

ASTM D3039 specimens are rectangular in shape with a constant cross-section.

The standard includes recommended specimen geometries for 0⁰ unidirectional, 90⁰ unidirectional, balanced and symmetric, and random-discontinuous material types.

ASTM D3039 can be used for both continuous and discontinuous fiber reinforcements, but the lay-up of the laminate specimen must be balanced and symmetric with respect to the test direction to ensure that the specimen does not twist or distort while under load.

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