5. Assessment and avenues for improvement
It is therefore possible to predict toughness distribution from impact strength using non-empirical approaches. It requires numerical modeling of the tests and, in particular, of the Charpy test, which presents a number of difficulties.
To model the Charpy test in the ductile-fragile transition, at least the following conditions must be met:
an elasto-viscoplastic calculation (without taking inertia effects into account);
contact modeling ;
ductile tearing prior to cleavage;
a three-dimensional calculation.
Performing the calculation under adiabatic conditions (with temperature-dependent behavior) will improve the modeling. With these assumptions,...
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Assessment and avenues for improvement
References
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