Compression Set Testing

Compression Set Fixture
Compression set fixture for testing the permanent set of polymers

Elastomers, rubbers, biomaterials, and thermoplastics typically exhibit permanent deformation due to prolonged applied loads.  This behavior can critically affect the function of a component and is often encountered in gasket or sealing applications.  Applied strain level, time compressed, and temperature can all significantly influence the compression set of a material.  The compression set tests can then be used in a material model calibration using MCalibration® for finite element simulations.

Veryst typically uses ASTM standard D395 to test the permanent deformation of rubbers, though custom test programs are available.  The figure above shows an image of a compression set fixture that Veryst uses to test elastomers and thermoplastics.

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