What is Compression Testing and How to Apply? (Compression Test Fixtures)

What is Compression Testing and How to Apply? (Compression Test Fixtures)

What is Compression Testing and How to Apply?

A compression test is any test in which a material encounters opposing forces that push the sample in from opposite sides or otherwise compress, crush, or flatten. The test specimen is usually placed between two compression plates, which distributes the applied load over the entire surface area of the two opposing faces of the test specimen, and then the plates are pushed by a universal testing machine which causes the specimen to flatten. A compressed specimen is generally shortened in the direction of the applied forces and expanded in the direction perpendicular to the force. The compression test is essentially the opposite of tensile test.


How is the Compression Test Performed?

A compression fixture suitable for the specimen is connected to a test device. The specimen is then placed in the fixture. The machine applies the required amount of load to the specimen and the specimen is crushed.


What is the Purpose of the Compression Test?

The purpose of compression testing is to determine the behavior or response of a material when experiencing a compression load by measuring key variables such as strain, stress, and deformation. Compressive strength, yield strength, ultimate strength, elastic limit and modulus of elasticity can be determined, among other parameters while a material is tested with compression testing. After these measurements are made, it can be understood whether the material is suitable for certain applications.


 The most common materials to which the compression test is applied are materials with high compressive strength such as composites, concrete, wood, stone, brick, mortars, polymers, plastics, foam and metals.


What are the Commonly Used Compression Test Fixtures?


ASTM C297 Test Fixture

ASTM C364 Test Fixture

ASTM C365 Test Fixture

ASTM C469 Test Fixture

ASTM D575 Test Fixture

ASTM D695 Test Fixture

ASTM D905 Test Fixture

ASTM D1621 Test Fixture

ISO 604 Test Fixture

ISO 14126 Test Fixture

DIN EN ISO 604 Test Fixture

ASTM D3410 Test Fixture

ASTM D3574 Test Fixture

ASTM D3846 Test Fixture

ASTM D5024 Test Fixture

ASTM D5467 Test Fixture

ASTM D6484 Test Fixture

ASTM D6641 Test Fixture

AITM 1-0008 Test Fixture

AITM 1-0010 Test Fixture

Boeing BSS 7260 Test Fixture

NAI 1504C Test Fixture

NASA 1092 Test Fixture

SACMA SRM 1 Fig.1 Test Fixture

DIN EN ISO 14126 Test Fixture

ASTM D7137 Test Fixture

ASTM D7249 Test Fixture

ASTM E9 Test Fixture

DIN EN ISO 6721-12 Test Fixture



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