An integral equation approach to fracture propagation in rocks

 

A seemingly novel integral equation approach is presented for the analysis of propagating fractures in plane

regions, The crack is modelled by a continuous distribution of Edge Dislocations. Arbitrary distributions of both free

field stresses and internal tractions on the crack surfaces are accounted for and the governing equations are derived

assuming homogeneous, isotropic, elastic-brittle material behaviour. A fundamental feature of this approach is that only

 

A seemingly novel integral equation approach is presented for the analysis of propagating fractures in plane

regions, The crack is modelled by a continuous distribution of Edge Dislocations. Arbitrary distributions of both free

field stresses and internal tractions on the crack surfaces are accounted for and the governing equations are derived

assuming homogeneous, isotropic, elastic-brittle material behaviour. A fundamental feature of this approach is that only

geometrical information describing the shape and the size of the fracture is necessary. This allows one to easily generate

the additional geometrical data for the propagated portions of the crack with negligible effort. A simple technique for

numerical solution is outlined, and the results obtained by analyzing a series of nongrowing and propagating fractures

are discussed.


  A seemin …


AUTORI: Altiero N.J. Gioda G.
RIG ANNO:1981 NUMERO:2
Numero di pagine: 55


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Articolo completo: https://associazionegeotecnica.it/wp-content/uploads/2010/09/RIG_1982_2_55.pdf