Article | REF: M4168 V1

Relationship resilience - tenacity. The contributions of numerical modeling

Authors: Clotilde BERDIN, Claude PRIOUL

Publication date: September 10, 2007, Review date: June 1, 2015

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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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