MECHANICAL TESTING
Compression Testing of Rigid Cellular Plastics - ASTM D 1621
"Standard Test Method for Compressive Properties of Rigid
Cellular Plastics"
ASTM D 1621 describes two procedures for determining the compressive
properties of rigid cellular materials - particularly expanded plastics.
The test is performed in a universal testing machine (tensile machine)
and compressive strain can be measured by crosshead motion or by
electronic means such as a strain gage mounted on the
surface of the sample.
Deformation data can be obtained, and from a compressive stress
at any load (such as compressive stress at proportional-limit load
or compressive strength at maximum load) and to compute the effective
modulus of elasticity.
Index of Mechanical Testing
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