- Tytuł:
- Numerical analysis of stress intensity factor and T-stress in pipeline of steel P264GH submitted to loading conditions
- Autorzy:
-
Moustabchir, H.
Arbaoui, J.
Zitouni, A.
Hariri, S.
Dmytrakh, I. - Powiązania:
- https://bibliotekanauki.pl/articles/281034.pdf
- Data publikacji:
- 2015
- Wydawca:
- Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
- Tematy:
-
T-stres
Stress Intensity Factor (SIF)
Finite Element Method (FEM)
Stress Difference Method (SDM)
volumetric method - Opis:
- Stress singularities occur at crack tips, corners and material interfaces. The stress intensity factors and T-stresses are coefficients of structural components where the active stress singular and first regular stress terms, respectively, are denoted by William’s eigen function expansion series. A finite element analysis by CASTEM 2000 have been undertaken in order to determine the evolution of the T-stress and stress intensity factor terms in mode I for an arc of pipeline specimens with an external surface crack. A stress difference method described by Moustabchir et al. (2012) are adapted and, in the following step, the volumetric method is then embedded to compute the SIFs and T-stress near the crack tip. Different crack geometries combined with different length-to-thickness ratios are examined for the T-stress and stress-intensity factor. The revisited stress difference method employed here shows to be an accurate and robust scheme for evaluating the T-stress/SIFs in an arc of the pipeline.
- Źródło:
-
Journal of Theoretical and Applied Mechanics; 2015, 53, 3; 665-672
1429-2955 - Pojawia się w:
- Journal of Theoretical and Applied Mechanics
- Dostawca treści:
- Biblioteka Nauki
Artykuł