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

• Autorzy: Kourkoulis S. K. , Exadaktylos G. E.
• Konferencja: Solid Mechanics Conference (33 ; 05-09.09.2000 ; Zakopane)
• Języki publikacji: EN

Abstrakty

EN

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 multiply-connectedelastic bodies. The critical conditions are then determined by employing 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.

Słowa kluczowe

EN

displacement discontinuity technique; subsurface crack; fracture mechanics; boundary element method; failure criterion

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Archives of Mechanics
• Rocznik: 2001
• Tom: Vol. 53, nr 4-5
• Strony: 421--437
• Opis fizyczny: Bibliogr. 9 poz., ry., wykr.

Twórcy

autor

Kourkoulis S. K.

autor

Exadaktylos G. E.

• National Technical University of Athens, Department of Mechanics, Zografou Campus, Theocaris Building, 157 73 Zografou, Athens, Greece