ICIT – Specimen Length Method

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ICIT – Specimen length method

General information

The ICIT – specimen length method is an experimental method for recording crack resistance (R) curves under dynamic (impact) stress, e.g. in instrumented Charpy impact tests (see also: Impact loading pendulum impact tester).

Implementation of the method

With this method, different stable crack growth Δa are achieved by pulling the test specimens, whose length l is equal to the support span s (support distance) plus a certain oversize of 0.1 to 0.2 mm, through the supports. The greater the oversize, the later the test specimen is pulled through between the abutments and the greater the Δa achieved should be.

See also

• Crack resistance curve – Experimental methods
• Instrumented Charpy impact test
• Impact loading pendulum impact tester
• MPK-Procedure MPK-ICIT

References

• Sunderland, P., Kausch, H. H., Schmid, E., Arber, W.: The application of fracture mechanics to the impact behaviour of rubber-toughned polyamids. Makromol. Chem. Macromol. Symp. 16 (1988) 365−378; https://doi.org/10.1002/masy.19880160126
• Licht, F.: Bruchmechanische Untersuchungen an Gusspolyamid. Ingenieurbeleg TH Merseburg 1990 (see AMK-Library under B 3-48)