Recueil de mécanique
Volume 5, Numéro 2, Pages 492-502
2021-07-03
Authors : Benguediab Mohamed . Maachou Sofiane . Benguediab Soumia . Benhamena Ali .
In this paper an analysis of the evolution of a semi-elliptical crack located at different positions of the wall of an HDPE pipeline under internal pressure is made. The three-dimensional finite element method is used to calculate the integral J. The J integral is important in the extreme positions on the contour of integration. When the ratio (a / t) reaches a critical value (a / t = 0.6), the effect of crack depth becomes important. It’s also shown that for low values of the opening angle of the curve, the crack tends to be propagated from the position 1. The transverse cracks have a lower risk that the axial cracks and then the cracks into interior of the wall of the pipe are more dangerous than the cracks external.
Pipe ; Semi-elliptical crack ; J Integral ; Finite Element Method (3D-FEM) ; HDPE ; axial cracks ; transverse cracks
بوسالم أحلام
.
عابد يوسف
.
ص 117-132.
Yahia Zeghoudi
.
pages 74-88.
Lebdiri Fatiha
.
Hamani Sofiane
.
Seghir Abdelghani
.
pages 16-23.
Said Houari Amel
.
pages 257-268.
Mentouri Zoheir
.
Moussaoui Abdelkrim
.
Boudjehem Djalil
.
Boudiaf Adel
.
Ziani Slimane
.
pages 58-63.