To model ductile tearing crack growth, a term homogeneous to an energy release rate and relevant of the dissipated energy in the fracture process is proposed. This parameter, G{sub}(fr), associated to the crack growth increment λ used in the calculations leads to a critical value of the local energy release rate calculated near the crack tip G{sub}l. This method allows to simulate large crack growth in the case of CT specimens of different sizes made in a Japanese STS 49 steel and of CT and SENT specimens made in a A106 Grade B steel. All these specimens are side grooved. The parameter G{sub}(fr) appears to be independent to the geometry and loading conditions.
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