6. Properties

Pultrusion

6. Properties

GRP profiles have an anisotropic structure. Depending on the laminate structure, the mechanical properties are listed in the following table:

Density 1,65 – 2,15 g/cm³
Flexural strengthlongitudinal440 / 500 N/mm²
Flexural strengthtransversal200 / 300 N/mm²
Flexural modulus of elasticitylongitudinal17500 / 25000 N/mm²
Flexural modulus of elasticitytransversal12000/ 17000 N/mm²
Compression strengthtransversal240 / 350 N/mm²
Tensile strengthlongitudinal430 / 900 N/mm²
Tensile strengthtransversal60 / 200 N/mm²
Elongation at breaklongitudinal2,2 %
Elongation at breaktransversal1,6 %
Coefficient of expansion 1,5-5 x 10^-6xK^-1
Water absorption 1,16 / 2,5 %
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