A REVIEW OF FRACTURE TOUGHNESS TRANSFERABILITY WITH CONSTRAINT AND STRESS GRADIENT

G Pluvinage (1) , Julien Capelle (2) , M Hadj Méliani (3)

1 LaBPS - Laboratoire de mécanique Biomécanique Polymère Structures
2 LEM3 - Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux
3 UHBC - Université Hassiba Ben Bouali de Chlef

In this review paper, only constraint and stress gradient approaches to transferability of fracture toughness are examined. The different constraint parameters are defined and discussed and one example is given in each case. Factors that are influenced the constraint are studied. Special attention is given to the actual trends is to use the plastic constraint in the Material Failure Master Curve (MFMC) and the Material Transition Temperature Master Curve (MTTMC). The paper also deals with the influence of T stress on the crack path and out-of-plane constraint on the influence of thickness on fracture toughness. The uses of plasticity with gradient and the relative stress gradient in local fracture approaches are also examined.

Mots clés: constraint; relative stress gradient; T stress; Q parameter

Domaines: Matériaux et structures en mécanique [physics.class-ph]

G Pluvinage, Julien Capelle, M Hadj Méliani. A REVIEW OF FRACTURE TOUGHNESS TRANSFERABILITY WITH CONSTRAINT AND STRESS GRADIENT. Fatigue and Fracture of Engineering Materials and Structures, 2014, 37 (11), pp.1165-1185. ⟨10.1111/ffe.12232⟩. ⟨hal-02972573⟩