$A modified local approach including plastic strain effects to predict cleavage fracture toughness from subsize precracked Charpy specimens$

A modified local approach including plastic strain effects to predict cleavage fracture toughness from subsize precracked Charpy specimens

•Extension and application of a modified Weibull stress incorporating plastic strain effects.•Fracture toughness values for an RPV steel depend strongly on specimen geometry.•Marked differences in crack front stresses between subsize PCVN and large C(T) specimens.•The modified Weibull stress model e...

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Veröffentlicht in:	Theoretical and applied fracture mechanics 2020-02, Vol.105, p.102421, Article 102421
1. Verfasser:	Ruggieri, Claudio
Format:	Artikel
Sprache:	eng
Schlagworte:	Cleavage Cleavage fracture Dependence Finite element method Fracture toughness Heat treating Impact strength Local approach Microcracks Micromechanics Nonlinear analysis Plastic deformation Plastic strain Pressure vessels Probabilistic methods Specimen geometry Strain Subsize PCVN specimens Weibull stress
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