Article | REF: AF6710 V1

Energy materials

Authors: Didier MATHIEU, Sylvain BEAUCAMP

Publication date: October 10, 2004

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6. Initiation

6.1 Sensitivities

The sensitivity of an energetic material – i.e. its propensity to decompose under the effect of external stress, whether voluntary or not – is obviously an extremely important aspect.

Different sensitivity criteria are defined according to the type of stress considered (impact, shock, friction, temperature rise, etc.).

Example

A common device for measuring the sensitivity of an explosive to impact is to drop a calibrated mass onto a sample of the material. The higher the mass is dropped, the greater the probability of initiation. The drop height for which decomposition is observed with a probability of 50% is denoted h 50 ....

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