ASTM D6484 Open-Hole Compression (OHC) Testing of CFRP


CFRPs have excellent characteristics in terms of specific strength and high rigidity, but they also lose a substantial amount of their strength when a cutout is made. In order to assess the use of composite materials for aircraft, tests must be performed with samples that have a circular hole cut through the center. ASTM D6468 is an open-Hole compression (OHC) testing method that uses a sample with a 6-mm (0.25-inch) diameter circular hole cut in its center. ASTM D6468 has two loading methods: method A and method B. This video shows method B, in which the sample is compressed via compression plates located on the ends of the sample and jig.

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