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Compressive Properties - ASTM D695
Compressive Modulus
The ratio of compressive stress to compressive strain. The slope of the linear region of the stress-strain curve.
Compressive Strength
The maximum compressive stress carried by a test specimen during a compression test.
Testing is performed on either rectangular or cylindrical specimens. The specimen is placed between the platens of a universal testing machine and compressed at a constant rate of 1.3 mm/min (0.50 in/min). A stress-strain plot is used to extract the compressive strength and the compressive modulus.