Notch Compression Test (Open Hole Compression)

Notch Compression Test (Open Hole Compression)                                               This test characterizes the influence of a hole on the compression strength of a laminate. The result is usually presented as a notch factor, which gives the ratio of damaged to undamaged specimen. 

According to Airbus AITM 1.0008 this test is performed with the fixtures of the compression test. 

ASTM and Boeing standards use a 300 mm-long specimen, which is to be clamped in a hydraulic parallel clamping tool with the aid of a supporting device.

Compression Test to Bolted Laminates (Filled Hole Compression)
This test uses the same specimen as the notch tensile test and the hole is closed with a threaded connection.