ASTM E1820 is a standard test method for measuring the fracture toughness of metallic materials. Specifically this test determines a materials resistance to facture from stationary crack, fracture after stable tearing, fracture from the onset of stable tearing, and fracture from sustained stable tearing. According to ASTM, this test provides a method from comparing the fracture toughness of materials. The fracture parameters K, J, and CTOD are determined in this test and can be used for material compression. The test machine that is needed from this test method must be able to measure the load applied to the test specimen, the load-line displacement, and the crack-mouth opening displacement. A digital measurement of load versus load-line displacement and load versus crack-mouth opening is also needed. It is also necessary to have a fixture solution that fits with the specific test specimen.
TestResources specializes in Test Equipment, Machines & Fixtures that are used in material testing. We have the material testing machines that are used for ASTM E1820 test standard. Call our applications engineers to talk with an expert in material testing. We will work with you to guarantee a test machine that fits your application.