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ensile Impact - ASTM D1822

The amount of energy per unit area required to break a specimen under tensile impact. This

test is used for materials that are either too flexible or too thin to be tested with ASTM D2!.

Strain rate is somewhere between that of ASTM D2! and ASTM D!"#.

Before Impact

After Impact

The test specimen is carried by the pendulum of the tensile impact machine. The pendulum

impacts a set of an$ils so that the impact load is carried by the test specimen %see figures&.

Two test specimen types are used' Type S %Short& and Type ( %(ong&. Type S specimens

exhibit low extension and tend to produce brittle fractures. Type S specimen results are more

reproducible' but offer less differentiation among materials. Type ( specimens exhibit higher

extension.

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Tensile Impact Specimens

Similar Standards

)S* #2!

http://www2.ulprospector.com/property_descriptions/ASTMD1822.asp

http://www2.ulprospector.com/property_descriptions/ISO8256.asphttp://www2.ulprospector.com/property_descriptions/ISO8256.asp