Numéro
J. Phys. IV France
Volume 08, Numéro PR8, November 1998
2nd European Mechanics of Materials Conference on Mechanics of Materials with Intrinsic Length Scale : Physics, Experiments, Modelling and Applications
Page(s) Pr8-257 - Pr8-268
DOI https://doi.org/10.1051/jp4:1998832
2nd European Mechanics of Materials Conference on Mechanics of Materials with Intrinsic Length Scale : Physics, Experiments, Modelling and Applications

J. Phys. IV France 08 (1998) Pr8-257-Pr8-268

DOI: 10.1051/jp4:1998832

Non-local failure and damage evolution rule : Application to a dilatant crack model

Z. Mróz1 and A. Seweryn2

1  Institute of Fundamental Technological Research, Swietokrzyska 21, 00-049 Warsaw, Poland
2  Bialystok University of Technology, Faculty of Mechanical Engineering, Wiejska 45c, 15-351 Bialystok, Poland


Abstract
A non-local crack propagation and damage evolution criteria were discussed in detail by the authors in [13-15] and applied to predict crack initiation from sharp notches and damage accumulation for complex cyclic loading programs. In the present paper the non-local condition is applied to the case of a cracked body subjected to compression and shear tractions inducing frictional slip and dilatancy at crack interfaces. The crack propagation directions with critical loading conditions are obtained taking into account the crack asperity interaction and dilatancy induced by slip. The material strength and compliance variation can be predicted from the model.



© EDP Sciences 1998