Hysteresis
 
 

Hysteresis Before and After Aging

This test records the continuous force during compression and release of materials of construction.

 

Why this test is needed

 How a support surface deforms under load, and how it pushes back on the body of the occupant identifies “tissue protection.”
     

How this test is performed

A disk shaped indenter is applied in a continuous loading and unloading to the support surface.