- TECHNICAL SPECIFICATIONS
EN 2850 – Aerospace Series – Carbon Ibre Thermosetting Resin – Unidirectional Laminates
Compression Test Parallel to Fibre Direction
EN 2850 defines a method for the determination of stress at failure and Young’s modulus in compression of carbon thermosetting resin unidirectional laminates.
The method only covers test pieces the axis of which is parallel to the fibre direction.
This method covers fibres (or fabrics) other than carbon, when the relevant technical specification explicitly mentions it.
Principle of The Method
The method consists in recording and measuring the longitudinal strain of the material as a function of the applied load during a compression test carried out
at a constant rate until failure.
The load applied to the material may be introduced in two different ways:
either mainly in shear through co-cured or bonded tabs (Method A);
or exclusively in compression by direct end loading of the test piece (Method B).
It is important to note that the test results obtained using different test pieces are not comparable
*** Before conducting EN 2850 , it is important to read the entire specification. Standards can be obtained from appropriate standard authorities.
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