Autor: Boulenouar, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Finite element analysis of the behaviour of a crack in the orthopedic cement
Autorzy:: Benouis, A.
Boulenouar, A.
Serier, B.
Powiązania:: https://bibliotekanauki.pl/articles/949117.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: stress intensity factor
crack
cavity
orthopedic cement
Opis:: In this paper, the finite element method is used to analyse the crack behaviour in the orthopedic cement of the total hip replacement by computing the stress intensity factors (SIFs) arround the crack tip. In this work, three cases are studied: crack emanating from a cavity, interaction effect of the crack emanating from a cavity with another cavity and the interaction effect of two cracks emanatingfrom two cavities. The stress intensity factors under mixed mode problems at the crack tip are computed for three zones of prosthesis: proximal, median and distal. The obtained results show that the crack initiated from a micro-cavity in the distal zone of cement can be propagated at the same time by opening and shearing of its lips. It is contrary to that initiated in the proximal zone which cannot be propagated. The mechanical behaviour of cracks in the medial zone depends of the crack initiation position.
Źródło:: Journal of Theoretical and Applied Mechanics; 2016, 54, 1; 277-284
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: FE model for linear-elastic mixed mode loading: estimation of SIFs and crack propagation
Autorzy:: Boulenouar, A
Benseddiq, N.
Mazari, M
Benamara, N
Powiązania:: https://bibliotekanauki.pl/articles/949326.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: crack propagation
stress intensity factor
strain energy density
Opis:: Finite element analysis combined with the concepts of linear elastic fracture mechanics provides a practical and convenient means to study the fracture and crack growth of materials. The onset criterion of crack propagation is based on the stress intensity factor, which is the most important parameter that must be accurately estimated and facilitated by the singular element. The displacement extrapolation technique is employed to obtain the SIFs at crack tip. In this paper, two different crack growth criteria and the respective crack paths prediction for several test cases are compared between the circumferential stress criterion and the strain energy density criterion. Several examples are presented to compare each criterion and to show the robustness of the numerical schemes.
Źródło:: Journal of Theoretical and Applied Mechanics; 2014, 52, 2; 373-383
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

Artykuł

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