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Sur les modèles de lignes plastiques en mécanique de la rupture. (Models of plastic lines in fracture mechanics). (French) Zbl 0633.73103

(Authors’ summary.) A procedure for deriving simplified fracture mechanics models is given. In such models the nonlinearity is confined on a line along which the crack is supposed to propagate. A limit process is used assuming that the plastic zone is included in a very narrow path around the crack. New models are thus obtained, the numerical formulation of which is very simple and which can be compared with those of Dugdale- Barenblatt, although they are different.
Reviewer: Dang Dinh Ang

MSC:

74R05 Brittle damage

References:

[1] G. DUVAUT, J. L. LIONS, Les inéquations en mécanique et en physique, Dunod (1972), Paris. Zbl0298.73001 MR464857 · Zbl 0298.73001
[2] J. SALENÇON, Théorie de la plasticité, Eyrolles (1973), Paris.
[3] C. JOHNSON, Existence Theorems for Plasticity Problems (J. Math. Pures et Appl., Vol. 55, 1976, pp. 431-444). Zbl0351.73049 MR438867 · Zbl 0351.73049
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