Universal Testing Machines for Static Applications

Hydraulic composites compression fixture (HCCF)

by ZwickRoell

View ZwickRoell on TEKEN44

Applications: Test to ISO 14126, prEN2850, Airbus AITM 1-0008, ASTM D3410, ASTM D6641, JIS K 7076, RAE TR 88012 CRAG methods 400 and 401, QVA-Z10-46-38, ASTM C1358, Airbus document X88SP1105735: “Plain compression test according to AITM 1.0008 A1 and A2 with ZwickRoell HCCF” 'Plain', 'open hole and 'filled hole' compression tests with force application via clamping (shear loading) or with combined force application with end support and simultaneous clamping (combined loading) Function description: The hydraulic compression fixture for composites (HCCF = Hydraulic Composites Compression Fixture) is used for determining the compression properties of long-fiber-reinforced composites. Strain is measured using strain gages on both sides as standard (grid length > 3 mm). The compression fixture has a connection hole at the top. The bottom is mounted on a compression platen. In the case of specimens for which the distance between the tabs and the grip-to-grip separation are at least 2 mm greater than the initial gauge-length, a clip-on extensometer measuring on both sides can be used (with a clamping fixture) on a customer-specific basis. Advantages: Can be used for tests in an extended temperature range from -60°C to +150°C. Open design form (C-shaped) allows convenient specimen changing and simplifies use of extension measurement systems. Design ensures extremely accurate specimen alignment. Parallel-closing hydraulic clamping principle ensures slip-stick-free, flexure-free force application with largely constant deformation rate. Precision guide-columns for extremely precise alignment of specimen grips with each other. Low-friction ball-guides prevent distortion of test results. The magnetic support of the movable jaws facilitates changing of specimens and cleaning of the clamping surfaces