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{{Language_sel|LANG=ger|ARTIKEL=IKBV Energie-Methode}}
{{PSM_Infobox}}
<span style="font-size:1.2em;font-weight:bold;">ICIT – Energy method</span>
__FORCETOC__

==ICIT low-blow technique==

The ICIT− Energy method is an experimental method for recording [[Crack Resistance (R) Curves|crack resistance (R) curves]] under dynamic (impact) loading, e.g. in [[Instrumented Charpy Impact Test|instrumented Charpy impact tests]] (see also: [[Impact Loading Pendulum Impact Tester|Impact loading pendulum impact tester]]).

The energy method is based on a variation in stable crack growth Δ''a'' measured with different hammer energies ''E'' at a constant [[Test Speed|test velocity]] ''v''. However, the so-called low-blow technique is more commonly used in technical applications, in which the change in the energy applied to the [[Specimen|test specimen]] is achieved by minor changes in the hammer velocity. This is achieved by varying the release angle of the pendulum hammer under otherwise identical test conditions ('''Fig. 1''').

[[file:IKBVEnergiemethode1.jpg]]
{|
|- valign="top"
|width="50px"|'''Fig. 1''':
|width="600px" |Technical realisation of the energy method in the [[Instrumented Charpy Impact Test|instrumented Charpy impact test]] (ICIT)
|}

==See also==

* [[Instrumented Charpy Impact Test|Instrumented Charpy impact test]]
* [[ICIT – Experimental Conditions|ICIT – Experimental conditions]]
* [[Impact Loading Plastics|Impact loading plastics]]
* [[Impact Loading Pendulum Impact Tester|Impact loading pendulum impact tester]]
* [[Test Speed|Test velocity]]

'''References'''

* Angelino, G., Fossati, G.: 5. Intern. Conference on Fracture, Cannes, France (1981) Vol. 5, pp. 2345–2352
* Thaulow, C., Kirkemo, F., Lereim, J.: Determination of the initiation toughness prior to ductile tearing during rapid loading. Internat. J. Fracture 23 (1983) R 65−72; https://link.springer.com/article/10.1007/BF00042821#citeas

[[category:Fracture Mechanics]]
[[category:Instrumented Impact Test]]

ICIT – Energy Method - Revision history