ASTM D2659 – 16
Standard Test Method for Column Crush Properties of Blown Thermoplastic Containers
The column crush properties include the crushing yield load, deflection at crushing yield load, crushing load at failure, and apparent crushing stiffness. Blown thermoplastic containers made from materials that possess a low order of ductility can fail in crushing by brittle fracture. In such cases, the crushing yield load is equivalent to the crushing load at failure. Blown thermoplastic containers made of ductile materials do not always exhibit a crushing load at failure although they will normally provide a crushing yield load value.
This test method covers the determination of mechanical properties of blown thermoplastic containers, whether blown commercially or in the laboratory, loaded under columnar crush conditions at a constant rate of compressive deflection.
Although this test method was developed specifically for blow-molded containers, the general procedure can also be applied to containers of suitable geometries produced by other means, for example, thermoforming, injection molding, etc.
NOTE : There is no known ISO equivalent to this standard.
Compression testing is a very common testing method that is used to establish the compressive force or crush resistance of a material . Compression tests are used to determine the material behavior under a load. The maximum stress a material can sustain over a period under a load (constant or progressive) is determined.
Compression testing is often done to a break (rupture) or to a limit. When the test is performed to a break, break detection can be defined depending on the type of material being tested. When the test is performed to a limit, either a load limit or deflection limit is used.
Common compression testing results are:
– Load at Rupture
– Deflection at Rupture
– Work at Rupture
– Maximum Load
– Deflection at Maximum Load
– Work at Maximum Load
– Chord Slope
– Offset Yield
We supply materials testing machines for compression testing.
Please contact us to see how we can help you with a compression testing solution that suits your needs.