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The displacement discontinuity technique in fracture mechanics: the subsurface crack problem

Exadaktylos Georgios, Kourkoulis, Stavros K

Πλήρης Εγγραφή


URI: http://purl.tuc.gr/dl/dias/CCF4F119-F130-482F-B638-2A4840387748
Έτος 2001
Τύπος Δημοσίευση σε Περιοδικό με Κριτές
Άδεια Χρήσης
Λεπτομέρειες
Βιβλιογραφική Αναφορά S. Kourkoulis and G. E. Exadaktylos, "The displacement discontinuity technique in fracture mechanics: the subsurface crack problem," Archives of Mech., vol. 53, no. 4-5, 2001, pp. 421-437.
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Περίληψη

The displacement discontinuity technique is employed for the determination of the critical conditions causing propagation of a preexisting finite fracture that lies close to the free boundary of a semi-infinite medium. The technique is applied by using a suitably adapted commercial indirect boundary element code, permitting the determination of the displacement, strain and stress fields in mulltiply-connected elastic bodies. The critical conditions are then determined by empoying a suitable failure criterion. The results of the numerical analysis are compared with the respective ones obtained from a series of experiments with pre-cracked specimens simulating the semi-infinite medium. The agreement is proved to be satisfactory.

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