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Materials Testing

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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