Axisymmetric Torsion of an Elastic Layer Sandwiched between Two Elastic Half-Spaces with Two Interfaced Cracks

• Autorzy: Madani Fateh , Kebli Belkacem

Identyfikatory

DOI

10.2478/sgem-2019-0006

• Języki publikacji: EN

Abstrakty

EN

The present article examines the problem related to the axisymmetric torsion of an elastic layer by a circular rigid disc at the symmetry plane. The layer is sandwiched between two similar elastic half-spaces with two penny-shaped cracks symmetrically located at the interfaces between the two bonded dissimilar media. The mixed boundary-value problem is transformed, by means of the Hankel integral transformation, to dual integral equations, that are reduced, to a Fredholm integral equation of the second kind. The numerical methods are used to convert the resulting system to a system of infinite algebraic equations. Some physical quantities such as the stress intensity factor and the moment are calculated and presented numerically according to some relevant parameters. The numerical results show that the discontinuities around the crack and the inclusion cause a large increase in the stresses that decay with distance from the disc-loaded. Furthermore, the dependence of the stress intensity factor on the disc size, the distance between the crack and the disc, and the shear parameter is also observerd.

Słowa kluczowe

EN

axisymmetric torsion; penny-shaped crack; dual integral equations; Fredholm integral equations

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2019
• Tom: Vol. 41, nr 2
• Strony: 57--66
• Opis fizyczny: Bibliogr. 21 poz., rys.

Twórcy

autor

Madani Fateh

• Mechanical Engineering and Development Laboratory, Mechanical Engineering Department, National Polytechnic School, 10, Avenue Hassen Badi- B.P. 182- 16200, El- Harrach, Algiers, Algeria

autor

Kebli Belkacem

• Mechanical Engineering and Development Laboratory, Mechanical Engineering Department, National Polytechnic School, 10, Avenue Hassen Badi- B.P. 182- 16200, El-Harrach, Algiers, Algeria

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).

Błędna numeracja w bibliografii (poz. 9).