Static failure load predictions under mixed mode loading with an implicit gradient formulation

• Autorzy: Tovo R. , Livieri P. , Benvenuti E.
• Konferencja: Konferencja mechaniki pękania / sympozjum (X ; 11-14.09.2005 ; Opole-Wisła, Polska)
• Języki publikacji: EN

Abstrakty

EN

In this paper, a non-local equivalent stress is calculated by solving a second order differential equation of implicit type. The solution is obtained assuming a linear elastic constitutive behaviour and two different definitions of the equivalent stress as failure criteria. The static failure loads of notched PMMA specimens predicted through the present criterion are compared with experimental results taken from the literature.

Słowa kluczowe

EN

PMMA specimens; stress field

• Wydawca: Oficyna Wydawnicza Politechniki Opolskiej
• Czasopismo: Zeszyty Naukowe. Mechanika / Politechnika Opolska
• Rocznik: 2005
• Tom: z. 82
• Strony: 211--218
• Opis fizyczny: Bibliogr. 12 poz., rys., tab., wykr.

Twórcy

autor

Tovo R.

• University of Ferrara, Italy

autor

Livieri P.

• University of Ferrara, Italy

autor

Benvenuti E.

• University of Ferrara, Italy

Bibliografia

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• [7] SEWERYN A., POSKROBKO S., MROZ Z.: Brittle fracture in plane elements with sharpe notches under mixed-mode loading. Journal of Engineering Mechanics, Vol. 123, 6, 1997, pp. 535-543
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• [9] BENVENUTI E., LORET B., TRALLI A.: A unified mi formulation in nonlocal damage. European Journal of Me. A/Solids.23, 2004, pp. 539-559
• [10] PEERLINGS R. H. J., DE BORST R, BREKELMANS W. AVREE J. H. P.: Gradient enhanced damage for quasi-brittle material. International Journal of Numerical Methods in Engineering, 39, 1996, pp. 3391-3403
• [11] WILLIAMS M. L.: Stress singularities resulting from various boundary conditions in angular corners of plates in extension, ASME, Journal Applied Mechanics, 19, 1952, pp. 526-528
• [12] LAZZARIN P., TOVO R.: A unified approach to the evaluation of linear elastic fields in the neighbourhood of cracks and notches. Internuj Journal of Fracture 78, 1996, pp. 3-19