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4. Predicting toughness from resilience
Once the Charpy test has been correctly modeled, it can be used to identify local models of material damage, which can then be used to predict the results of a toughness test.
There are three distinct temperature ranges for materials undergoing a ductile-brittle transition, depending on the loading conditions:
the low level, for which the energy expended is low, with cleavage-type breaking mechanisms;
the high bearing, in which high energy associated with extensive plasticity is measured;
a transition domain in which ductile tearing precedes brittle fracture.
Here, we focus on the bottom of the ductile-fragile transition and the transition.
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